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  • ctive Mg Estimation Using Thermal Analysis: A Rapid

    2021-6-7 · thermal analysis has been developed in the present work so as to estimate the amount of free Mg ... thermal cup with inoculant on the left, active Mg cup that contain Te mixture (solid arrow), and the reactive mixture (dotted ... Sampling for TA was made just before adding a new melt batch in the vessel. Each sample extracted from the

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  • Bioaerosol sampling by a personal rotating cup

    High concentrations of bioaerosols containing bacterial, fungal and biotoxinic matter are encountered in many workplaces, e.g. solid waste treatment plants, waste water treatment plants and sewage networks. A personal bioaerosol sampler, the CIP 10-M (M-microbiologic), has been developed to measure …

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  • Bioaerosol sampling by a personal rotating cup sampler

    Bioaerosol sampling by a personal rotating cup sampler CIP 10-Mw ... interest is aerosol sampling, measurement and analysis in the ... France) based on the rotating filter cup was designed by

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  • Testing > Thermal Analysis

    Simultaneous Differential Thermal Analysis Thermal Gravimetric Analysis (DTA TGA) ASTM E228. Standard Test Method for Linear Thermal Expansion of Solid Materials with a Push-Rod Dilatometer. ASTM E1269. Standard Test Method for Determining Specific Heat …

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  • Thermal Analysis > Differential Thermal Analysis (DTA)

    Differential Thermal Analysis (DTA) Differential Thermal Analysis is a determination (multigram samples) of the temperature difference between the sample and a known reference as a function of the reference temperature. It is a sensitive qualitative test for determining the temperature at which chemical and physical changes occur in the sample.

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  • Sampling and Analysis of Bitumen Fumes: Comparison

    The results revealed differences between the sampling and analytical methods that could be linked to sampler design, extraction solvent, and the detection method used. The total quantification returned by the two methods-the sum of the masses quantified on filter and XAD-2 bed for each sampler-were correlated in both controlled and real-life tests.

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  • Estimation of the measurement uncertainty, including

    2020-6-12 · A specific study was designed and carried out at the Loire River Basin in France, in order to estimate the measurement uncertainty, including the contribution of sampling. Following recommendations from the Eurachem Guide on Uncertainty arising from sampling, the duplicate method was selected. The study was conducted in 2017 under routine and operational conditions with the …

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  • GGuuiiddeelliinneess oonn SSaammpplliinngg ooff ...

    2015-12-8 · sampling of illicit drugs for qualitative analysis [1]. The basis of this document was to propose sampling strategies for seizures with large numbers of units, to provide evidence of the presence or the absence of illicit compounds. As a consequence, only a fraction of the total units in a seizure needed to be fully investigated.

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  • 151 Walking Tractor For Africa Market

    2021-7-11 · 说明:检索中国高校人文社会科学文献中心 (CASHL)的文献资源,并可通过馆际互借获取全文. 入馆教育系统开通. 欢迎关注原文传递APP平台. 欢迎关注馆际互借微信平台. 新生专栏. 硕、博论文提交. 新闻公告 | 资源公告. 我校ESI热点论文与高被引论文(2.. 2021-07-11 ...

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  • ctive Mg Estimation Using Thermal Analysis: A Rapid

    2021-6-7 · thermal analysis has been developed in the present work so as to estimate the amount of free Mg ... thermal cup with inoculant on the left, active Mg cup that contain Te mixture (solid arrow), and the reactive mixture (dotted ... Sampling for TA was made just before adding a new melt batch in the vessel. Each sample extracted from the

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  • Product Specifications DirectSample Probe

    2007-11-19 · methods of complex sample analysis. Easyto Use Controller for Sampling Options The Direct Probe Controller (DPC)is ... sample cup of the DIP. As a result, less thermal degradation of the sample occurs. ... France +33 1 60 92 48 00 Germany +49 6103 4080 India +91 22 2778 1101

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  • Product Overview - Heraeus

    Sampling . High end thermal analysis . CGI/SG process control . GIS Foundry information system . Foundry process technology . Aluminium. Bath temperature measurement, Liquidus temperature (superheat) and cathode voltage drop sensors are offered for the application in Cryolite reduction cells of the primary aluminium industry.

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  • Tar measurement standard for sampling and analysis of

    paris, france, 17-21 october 2005. ecn-rx--05-185 2 . tar measurement standard for sampling and analysis of tars and particles in biomass gasification product gas

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  • The use of Porous Ceramic Cups for Sampling Soil

    Among the chemicals belonging to the schedules of the Chemical Weapons Convention (CWC), sampling and analysis of highly volatile compounds such as hydrogen cyanide (HCN) require special consideration. The latter is present in numerous old chemical weapons that are stockpiled awaiting destruction in Northeastern France: thus, sampling on stockpile area and subsequent verification of HCN levels ...

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  • Optimisation of sorbent trapping and thermal

    The method is based on thermal desorption (TD) of gas and particulate samples, coupled with gas chromatography (GC) and mass spectrometry (MS), with derivatisation on sampling supports. Gaseous compounds were trapped on Tenax TA adsorbent tubes pre-coated with pentafluorobenzylhydroxylamine (PFBHA) or N-Methyl-N-( t -butyldimethylsilyl ...

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  • AMT - Development of a parallel sampling and

    Pyrometric Bars. Orton Bars were specifically designed to function in the Kiln-Sitter®. The uniform shape makes consistent placement easy without affecting firing. The novice or beginner will welcome its ease of use, while those practiced in firing will appreciate the consistency. View Products by Category:

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  • Pyrometric Cones > Pyrometric Bars - Orton Ceramic

    Thermo Scientific products help scientists around the world meet the challenges they face every day. From routine analysis to pioneering discoveries, our innovations help scientists solve complex analytical challenges, empowering them to conduct the work they need to do, the way they want to do it.

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  • Thermo Scientific | Thermo Fisher Scientific - US

    2014-1-21 · Download Constraint Analysis Using Sampling: CAUS for free. CAUS was developed using Visual Basic Version 6.0. This software can be used for classifying constraints as either 'necessary' or 'redundant' in small-sized linear and 2-variable quadratic programming problems.

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  • Product Specifications DirectSample Probe

    2007-11-19 · methods of complex sample analysis. Easyto Use Controller for Sampling Options The Direct Probe Controller (DPC)is ... sample cup of the DIP. As a result, less thermal degradation of the sample occurs. ... France +33 1 60 92 48 00 Germany +49 6103 4080 India +91 22 2778 1101

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  • The use of Porous Ceramic Cups for Sampling Soil

    Foundry. Heraeus Electro-Nite offers a wide range of different immersion sensors, cups and instruments for various applications in foundries. Temperature Control. Thermal Analysis. Oxygen Activity Control. Sampling. High end thermal analysis. CGI/SG process control. GIS Foundry information system.

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  • Foundry - Heraeus

    These small canisters are designed for controlled sampling, such as personal air sampling, as an alternative to tube and pump samplers. These canisters are suitable for sampling volatile organic compounds in air as listed in methods TO-14A, TO-15, IP-1A, ASTM 5466, OSHA PV 2120, and NJ DEP Low Level TO-15.

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  • Miniature Air Sampling Canisters (Electropolished ...

    Furthermore, thermal desorption of the corresponding samples, followed by analysis by gas chromatography – mass spectrometry was also optimised. Carbosieve S-III, a molecular sieve possessing a very high specific area, proved the most efficient sorbent for HCN sampling …

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  • Optimisation of sorbent trapping and thermal

    2018-7-27 · Briefly, the analysis cup containing the plastic was placed on the AS-1020E autosampler of an EGA/PY-3030D device (Frontier Lab, Fukushima, Japan). Samples were pyrolyzed at 600 °C for 1 min. Pyrolysis products were injected with a split of 20, on a GC-2010 device (Shimadzu, Noisiel, France) equipped by a RXi-5 ms® column (60 m, 0.25 mm, 25 ...

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  • Optimization, performance, and application of a

    2014-10-26 · Introduction to Fourier analysis, the Fourier series 2. Sampling and Aliasing 3. Discrete Fourier methods, and Applications . 1. ... Fourier analysis tells us that we can consider a time-series of ... (France…

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  • Introduction to Fourier analysis, the Fourier series ...

    2017-10-26 · Sampling procedures must be applied in a strict manner by trained personnel with prior sampling experience. Moreover, a standardized approach must be adopted irrespective of the sampling location, shipment mass or volume, or commodity. Sampling of material from packaged one ton bulk bags (super sacks totes IBC big bags) is a

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  • Fertilizer Bulk Bag Sampling

    2021-7-21 · Global “Aseptic Sampling Bag Market' is expected to grow at a steady growth during the forecast period 2021-2027, Aseptic Sampling Bag Market report offers insights into the latest trends.It summarizes key aspects of the market, with focus on leading key player’s areas that have witnessed the highest demand, leading regions and applications.

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  • Aseptic Sampling Bag Market 2021 : Overview with

    2021-4-16 · GIE Laboratoire des Courses Hippiques (LCH), 15 rue de Paradis, Verrières le Buisson, 91300 France. Correspondence. Benoit Loup, Laboratoire des Courses Hippiques (LCH), 15 rue de Paradis, 91370 Verrières-le-Buisson, Paris, France. Email: [email protected] Search for …

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  • Sampling - Eurofins Scientific

    Sampling. A worldwide network of laboratories offer a huge range of sampling services of generic waste according to European legislation. Sampling plans for building materials, asbestos, residues. Sampling in buildings. Sampling of industrial sites. Country.

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  • Thermal Desorption Tubes - Restek

    Thermal Desorption Tubes. (Empty) Empty tubes for direct desorption of VOCs from liquids, solids, or pastes. Stainless steel: front sorbent-retaining gauze, rear gauze, and gauze retaining spring supplied; or glass: has a restriction point 15 mm from sampling end. Can be …

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  • Sampling method development and optimization in

    2017-7-7 · Forensic profiling of human odor is challenging and would be useful to support information provided by dogs in courts of justice. Analyses of volatile compounds constitutive of human odor are commonly performed with gas chromatography coupled with mass spectrometry. All developed methods and sampling prototypes have to be easy to use in the field by crime scene investigators. This paper …

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  • 1 A highly portable and inexpensive field sampling kit for ...

    2021-7-15 · sampling kit that utilises a small, low power CO 2 sensor. We demonstrate the reliability of the 14 new kit for the collection of CO 2 samples for 14C analysis in a series of laboratory and field tests. This 15 inexpensive sampling kit is small, light-weight, highly portable, and has low …

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  • Identification and quantification of plastic additives ...

    2021-6-15 · Py-GC/MS is now a recognized method for the fast identification and semi-quantification of organic contaminants, including OPAs ().It provides a well-known advantage: it does not require sample pre-treatment, such as SE (Llana-Ruiz-Cabello et al., 2017).Analysis can be carried out by simply placing a suitable amount of weighed out sample directly in a pyrolysis sample cup, thereby limiting ...

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  • Identification and quantification of selected plastics in ...

    2020-5-1 · Alternative and complementary quantitative analytical method for the analysis of selected plastics in complex environmental samples. • Pressurized liquid extraction (PLE) combined with double-shot pyrolysis gas chromatography-mass spectrometry (Pyr-GC/MS) allows for the identification and quantification of polyethylene, polystyrene, poly-methyl methacrylate, polypropylene and polyvinyl …

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  • Sampling: The foundation-block of analysis |

    Non-mathematical aspects of the ill-knowntheory of particulate material sampling developed by the author are presented. Emphasis is put on the following points: (1) Sampling andanalysis are complementary and inseparable. They arenever exact, always error-generating. (2) All analytical results are affected by three sets of errors: (a)primary sampling errors: difference betweentrue unknown ...

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  • Fourier analysis of correlated Monte Carlo importance

    2021-4-7 · Our unified formulation hints at fundamental limitations of Fourier-based tools in performing variance analysis for MC integration. At the same time, it reveals that, when combined with correlated sampling, importance sampling (IS) can impact convergence rate by introducing or inhibiting discontinuities in the integrand.

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  • PAEs and PBDEs in plastic fragments and wetland

    2021-5-5 · The sampling was conducted from August to October 2019. For each sampling site, around ten plastic fragment samples (13.1–169.2 mm) were picked up with stainless steel tweezers. Three parallel samples of 25-L surface water and 2-kg surface wet sediment samples were sampled by 30-L white plastic buckets and a small shovel, respectively.

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  • Sampling systems | Process | ENVEA

    Relative efficiencies of two air sampling methods and three culture conditions for the assessment of airborne culturable fungi in a poultry farmhouse in France. Nieguitsila A(1), Arné P, Durand B, Deville M, Benoît-Valiergue H, Chermette R, Cottenot-Latouche S, Guillot J.

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  • Relative efficiencies of two air sampling methods and ...

    Faraday cup and a scanning electron microscop detector (Channeltron, Fhotonis France SAS, Brive Cedex, France). The apparatus was used in line with the thermal analysis equip-

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  • Jointly estimating spatial sampling effort and habitat ...

    2017-10-26 · Sampling procedures must be applied in a strict manner by trained personnel with prior sampling experience. Moreover, a standardized approach must be adopted irrespective of the sampling location, shipment mass or volume, or commodity. Sampling of material from packaged one ton bulk bags (super sacks totes IBC big bags) is a

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  • Waste Management & Research Study of thermal pre

    E Agenda Item 7 CX/MAS 21/41/9 March 2021 JOINT FAO/WHO FOOD STANDARDS PROGRAMME CODEX COMMITTEE ON METHODS OF ANALYSIS AND SAMPLING 41st Session Virtual, 17 – 25 May 2021 REVISION OF THE GENERAL GUIDELINES ON SAMPLING (CXG 50 – 2004) (Prepared by the EWG led by New Zealand and co-chaired by the United States of America)

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  • Fertilizer Bulk Bag Sampling

    Optimisation of sorbent trapping and thermal desorption– gas chromatography –mass spectrometric conditions for sampling and analysis of hydrogen cyanide in air Y. Juillet, S. Le Moullec, A. Bégos and B. Bellier, Analyst, 2005, 130, 977 DOI: 10.1039/B416108D

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  • CODEX COMMITTEE ON METHODS OF ANALYSIS AND

    2003-10-16 · The sampling strategy should therefore be different according to the objectives: rather large soil samples (≥1 g) for a global description of the genetic community structure, or a large number of small soil samples for a more complete inventory of microbial diversity.

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  • Optimisation of sorbent trapping and thermal

    2021-1-1 · The main advantages of QFFs over glass-fiber filters (GFF), which can also be used for this kind of sampling [37,61,62], are the higher purity of the material, leading to lower blank levels , and its higher thermal stability, enabling the determination of organic and elemental carbon (OC/EC) by calcinating the filter at up to 850 °C [36,64,65 ...

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  • Sampling strategy in molecular microbial ecology ...

    2019-3-15 · Topological Methods for the Analysis of High Dimensional Data Sets and 3D Object Recognition (2007). 并没有仔细地研究,只是略读了一下。. 这两篇文章的方法都是差不多的,但是作者完全不一样也没有引用不知道怎么回事,这个算法在前一篇叫做mapper,在后一篇叫做TDA,因为后面 ...

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  • [Ecology of leishmaniasis in southern France. 9.

    [Ecology of leishmaniasis in southern France. 9. Sampling methods in the study and analysis of canine enzootic leishmaniasis]. [Article in French] Lanotte G, Rioux JA, Croset H, Vollhardt Y. An account is given of the fundamental methods used on an investigation of the …

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  • Foundry - Heraeus

    Foundry. Heraeus Electro-Nite offers a wide range of different immersion sensors, cups and instruments for various applications in foundries. Temperature Control. Thermal Analysis. Oxygen Activity Control. Sampling. High end thermal analysis. CGI/SG process control. GIS Foundry information system.

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  • equipment for the detection of

    2021-3-15 · Guide Lm surface sampling – version 3 EURL for Listeria monocytogenes 6/15 20/08/2012 2 SCOPE These guidelines specify where, how and when wipe sampling should be performed to detect L. monocytogenes on surfaces of ready-to-eat food processing areas and equipment. NOTE 1: Surfaces of the processing area and equipment are not the only places to monitor, the

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  • Soil Sampling and Methods of Analysis

    2012-8-9 · This volume is an update of the book, Soil Sampling and Methods of Analysis, first published in 1993. The aims of this second edition remain the same as those of the earlier edition—to provide a compilation of soil analytical and sampling methods that are commonly used, straightforward, and relatively easy to use.

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  • Sampling flying bats with thermal and near-infrared ...

    2021-3-8 · Out of the 109 thermal detections, photos with bats were found in 60 detections (55 %), and flight maneuvers were noted in 50 detections (46 %). Out of the detections with bat photos, 45 had a visible aspect of the bat morphology (41 % of thermal detections). Out of the 3152 near-infrared photos, 981 (3 to 46 % per night, with an average of 25 ...

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  • A toolbox for the comprehensive analysis of small

    2021-4-14 · Recently non-invasive access to this inner world of gut microbiota and fermentation products has become possible with the development of novel human gastrointestinal capsules, some …

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  • Optimization, performance, and application of a

    2018-7-27 · Briefly, the analysis cup containing the plastic was placed on the AS-1020E autosampler of an EGA/PY-3030D device (Frontier Lab, Fukushima, Japan). Samples were pyrolyzed at 600 °C for 1 min. Pyrolysis products were injected with a split of 20, on a GC-2010 device (Shimadzu, Noisiel, France) equipped by a RXi-5 ms® column (60 m, 0.25 mm, 25 ...

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  • Problems encountered in solid sampling-trace

    The determination of trace elements by solid sampling in geological samples presents many difficulties because the matrix is complex. We studied atomization and thermal decomposition conditions for solid sampling on soil, rock and sediment samples, using inverse Zeeman background correction. Each sample was ‘diluted’ with graphite powder. Both the sensitivity and accuracy were improved ...

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  • Introduction to Fourier analysis, the Fourier series ...

    2014-10-26 · 1. Introduction to Fourier analysis, the Fourier series 2. Sampling and Aliasing 3. Discrete Fourier methods, and Applications

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  • NAPHTHALENE 1. Exposure Data

    2018-6-28 · 1.1.5 Analysis Gas–liquid chromatography is used extensively to determine the naphthalene content of mixtures. Naphthalene can be separated easily from thionaphthalene, the methyl- and dimethylnaphthalenes and other aromatics. Analysis of other impurities may require the use of high-resolution capillary columns (Mason, 1995). Selected methods ...

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  • Bulk Sampling for Asbestos - US EPA

    2021-6-25 · thermal system insulation, joint compound, roofing material, gaskets, floor coverings, decorative coatings, and wire insulation. The sampler will use a sampling tool appropriate for each kind of material and collect samples in airtight containers for subsequent laboratory analysis. The sampler should always use a clean tool to collect the

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  • Ziad Mahmoud , Fabrice Bray , §Marie Hubert-Roux ,

    2020-12-15 · madzu, Champs-sur-Marne, France) equipped with a two-stage thermal modulator ZX 2 (Zoex, Houston, USA). Pyrolysis was per-formed using a vertical micro-furnace-type pyrolyzer PY-3030iD (Frontier Lab, Fukushima, Japan) directly connected to the injec-tion port of the gas chromatograph. The sample was placed in a stainless-steel sample cup.

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  • Laser assisted sampling vs direct desorption flowing ...

    LAS gives access to sampling from all of the tape layers and the FAPA mass spectra is extended to higher m/z, while polymer fragmentation patterns are evident. Principal components analysis (PCA) was implemented to assess the ability of each technique to distinguish and categorize identified tape classes within the sampled population.

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  • Chemical Analysis – Analyzers | Analytik Jena GmbH

    2019-5-1 · The Keysight U2500A series USB simultaneous sampling data acquisition (DAQ) devices are high-performance modules that provide up to four channels with 14-bit and 16-bit resolution. This simultaneous sampling DAQ is ideal for phase-sensitive applications that require high sampling rates per channel. Use these multifunction DAQ devices as ...

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  • ACP - Laboratory study of the collection efficiency of ...

    2021-5-6 · Abstract. A new In-Cloud Aerosol Scavenging Experiment (In-CASE) has been conceived to measure the collection efficiency (CE) of submicron aerosol particles by cloud droplets. In this setup, droplets fall at their terminal velocity through a 1 m high chamber in a …

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  • Comparative analysis of vaginal microbiota sampling

    2017-7-19 · Background Molecular methods such as next-generation sequencing are actively being employed to characterize the vaginal microbiota in health and disease. Previous studies have focused on characterizing the biological variation in the microbiota, and less is known about how factors related to sampling contribute to the results. Our aim was to investigate the impact of a sampling device and ...

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  • Legionella Testing Solutions - Bio-Rad

    2015-12-15 · Bulletin 16414 Ver E NA 15-1265 1115 Sig 1214 Web site www.bio-rad.com USA 800 424 6723 Australia 61 2 9914 2800 Austria 43 1 877 89 01 Belgium 03 710 53 00 Brazil 55 11 3065 7550 Canada 905 364 3435 China 86 21 6169 8500 Czech Republic 420 241 430 532 Denmark 44 52 10 00 Finland 09 804 22 00 France 01 47 95 69 65 Germany 49 89 31 884 0 Greece 30 210 9532 220 Hong …

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  • Latin Hypercube Sampling - File Exchange - MATLAB

    2021-7-1 · Water sampling and analysis methods today are logistically complex, labor-intensive, time-consuming, and costly. Could drones, which are relatively cheap provide part of the solution? After two ...

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  • Thermal Desorption: A Practical Applications Guide

    1998-1-23 · Dry purge if no dryer used during sampling Splitless desorption Trap: Air Toxics water m’gement: -15 to 320ºC Analysis by GC-MS using SIM or NCI Reference: TDTS17 UNITY detection limits, TDTS31 UNITY system performance 30 ml of air from bubbles in the ice core collected in canisters. Analysis by TD-GC-MS in NCI mode. Unit ppt detection ...

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  • Thermal Desorption (TD) Tubes

    Thermal Desorption (TD) Tubes. (Unconditioned and Conditioned & Capped) Variety of sorbents to collect a wide range of VOCs, including Tenax and carbon sorbents. Use corrosion-resistant glass tubes for excellent inertness; allow monitoring of sorbent bed condition. Choose stainless steel tubes for greater durability in the field.

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  • Gas Sampling Cylinder Analysis | Oneida Research

    2021-7-21 · Global “Aseptic Sampling Bag Market' is expected to grow at a steady growth during the forecast period 2021-2027, Aseptic Sampling Bag Market report offers insights into the latest trends.It summarizes key aspects of the market, with focus on leading key player’s areas that have witnessed the highest demand, leading regions and applications.

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  • RGA Testing | Package Gas Analysis | Oneida Research

    2003-1-30 · Potential biases in sampling design and interpretation of intra-tooth isotope analysis. ... Paris, France. CNRS ESA 8045, ‘Archéozoologie, Histoire des Sociétés humaines et des Peuplements animaux’, Laboratoire d'Anatomie Comparée, Muséum national d'Histoire naturelle, 55 rue Buffon, 75005 Paris, France…

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  • Aseptic Sampling Bag Market 2021 : Overview with

    Rapid on-line sampler-injector: a reliable tool for HT-HP sampling and on-line GC analysis P. Guilbot, A. Valtz, H. Legendre and D. Richon Laboratoire de Thermodynamique CEREP-TEP, Armines - École des mines, 35, rue Saint Honoré, 77305 Fontainebleau, France (Received March 9, 2000; revised May 29, 2000; accepted May 30, 2000.) Abstract

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  • Potential biases in sampling design and interpretation

    To our knowledge, this is the first systematic review and meta-analysis examining alternative specimen collection methods for SARS-CoV-2 RT-PCR testing, and reports the pooled analysis of sensitivity, specificity, PPV, and NPV to inform a comprehensive evaluation of the relative diagnostic performance of different sampling approaches for the ...

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  • Rapid on-line sampler-injector: a reliable tool for HT

    This dissertation introduces a theoretical framework to study different sampling patterns in the spherical domain and their effects in the evaluation of global illumination integrals. Evaluating illumination (light transport) is one of the most essential aspect in image synthesis to achieve realism which involves solving multi-dimensional space integrals. Monte Carlo based numerical ...

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  • PAC-PAC-ACCURA: Sampling Device

    The ACCURA sampling device is designed for fully automated analysis of gaseous and pressurized liquid hydrocarbon streams for MultiTek and Gas Chromatography applications. It provides these key benefits through: When analyzing Liquid Pressurized Gases (LPG) with Gas Chromatography or Elemental Analysis, the most challenging task is to maintain ...

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  • On Sampling Between Data of Significant Wave

    2013-11-26 · Arena, F, & Laface, V. 'On Sampling Between Data of Significant Wave Height for Long-Term Analysis With Equivalent Triangular Storm Model.' Proceedings of the ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. Volume 2B: Structures, Safety and Reliability. Nantes, France. June 9–14, 2013. V02BT02A030. ASME.

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  • New Testing Methods, Analysis of Sampling

    2020-7-31 · In a paper to be published in eBioMedicine, investigators from Brigham and Women's Hospital conducted a systematic review and meta-analysis of COVID-19 sampling techniques, analyzing data from more than 3,000 specimens to compare nasopharyngeal swabs, oropharyngeal swabs, and sputum sampling. They found that sputum sampling is a valuable method ...

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  • Water sampling - Upscience

    Water sampling. Sampling is often mistakenly regarded as a non-critical step in the analytical process. In fact, the quality of your sample determines the validity of all subsequent analyses. For water analysis, our sampling technicians are specialized and fully dedicated to water sampling. Their on-site visits are performed in complete ...

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  • Sampling – Aspexit

    2018-10-3 · Field campaigns are a fundamental element to many precision agriculture studies. Indeed, sampling is necesary to calibrate a agronomic model or to evaluate the spatial structure of valuable and non accessible (or at least with difficulty) information via remote or proxy sensing (soil water status, leaf nitrogen content…) [Fig. 1].

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  • Differential Scanning Calorimetry (DSC) Analysis

    Differential Scanning Calorimetry analysis performed by our scientists, committed to Total Quality Assurance. Differential Scanning Calorimetry (DSC) is a thermal analysis technique in which the heat flow into or out of a sample is measured as a function of temperature or time, while the sample is exposed to a controlled temperature program.

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  • Analysis of gas chromatography-mass spectrometry

    2021-7-23 · Thermal Treatment. The wood samples were sawn to dimensions of 500 mm × 100 mm × 20 mm (L × R × T). The thermal treatment was performed under atmospheric air in an oven at 160, 180, 200, or 220 °C for 2 h, and then the samples were ground and screened to between 40 and 60 mesh. Near-Infrared (NIR) Spectrum Analysis

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  • 2. surface water quality monitoring — European

    2020-11-23 · 2. Surface water quality monitoring. This chapter aims at giving a short introduction to the basic principles of surface water monitoring. Additional information can be found in numerous textbooks, an example being 'Design of Networks for Water Quality Monitoring' by Sanders et al. (1987). The objective of water quality monitoring is to obtain ...

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  • Interfacial charge distributions in carbon-supported ...

    2017-8-24 · Control over charge transfer in carbon-supported metal nanoparticles is essential for designing new catalysts. Here, the authors show that thermal treatments effectively tune the interfacial ...

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  • It’s A Matter of Degrees, but Do Degrees Really Matter?

    Injecting a liquid sample into a hot GC inlet is a dynamic and complex event. Of the many parameters that affect the success of an injection, inlet temperature is one of the most significant. Raising or lowering the inlet temperature setpoint can have a profound effect on how much sample is transferred onto the column depending on sample volatility and thermal sensitivity.

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  • Evidence for perchlorates and the origin of

    The Phoenix Thermal and Evolved Gas Analyzer provided supporting evidence for the presence of perchlorate based on the temperature of release of O 2 during thermal volatilization of the samples [Boynton et al., 2009; Hecht et al., 2009]. The discovery of perchlorate on Mars by Phoenix prompted several groups to revisit the origin of the ...

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  • Diagnostica Stago, Inc. Product Catalog 2015

    2015-10-14 · Primary tube sampling Continuous sample access Open reagent system Reagent and disposable management Reagent level detection QC management with Levy-Jennings Reagent and sample bar code reader Auto re-run and auto re-dilute options Programmable and pre-programmed options Up to 70 on-board reagent capacity Capacity of up to 1,000 disposable cuvettes

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  • Design and Optimization of a High-Time-Resolution

    applied sciences Article Design and Optimization of a High-Time-Resolution Magnetic Plasma Analyzer (MPA) Benjamin Criton 1,*,†, Georgios Nicolaou 1,2 and Daniel Verscharen 1,3 1 Department of ...

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  • ISO/TR 16312-2:2021(en), Guidance for assessing the ...

    ISO 19701, Methods for sampling and analysis of fire effluents [47] ISO 19702, Guidance for sampling and analysis of toxic gases and vapours in fire effluents using Fourier Transform Infrared (FTIR) spectroscopy [48] ISO 19706, Guidelines for assessing the fire threat to people [49]

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  • Welcome to Dräger US - Leading Medical & Safety

    Get to know Dräger USA! We are the international leader in the fields of medical & safety technology. Dräger products protect, support and save lives since 1889.

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  • Primary and Net Ecosystem Production in a Large Lake ...

    2021-4-8 · The lake is oligo-monomictic and the thermal stratification persists from spring to late autumn and deepest seasonal mixing is reached in late winter (February). Complete turnover, however, only occurs about once every decade (Schwefel et al., 2016). The major tributary to the lake is the Rhône River, which is responsible for 70%–75% of the ...

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  • CANoe | ECU & Network Testing | Vector

    2021-7-26 · CANoe is the comprehensive software tool for development, test and analysis of individual ECUs and entire ECU networks. It supports network designers, development and test engineers throughout the entire development process – from planning to system-level test. Versatile variants and functions provide the appropriate project support.

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  • Home | Chemours

    The June 28th event will highlight segment specific strategy and growth opportunities The Chemours Company (Chemours) (NYSE: CC), a global chemistry company with leading market positions in Titanium Technologies, Thermal & Specialized Solutions, Advanced Performance Materials, and Chemical Solutions today announced that it will host an investor ...

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  • CrimeScope CS-16-500W - HORIBA

    The CS-16-500W-15F contains an automated filter wheel with an LED readout on the front of the unit. There is a remote control integrated into the working end of the liquid light guide to control wavelength selection. Since the remote is integrated, there is no separate wire, connection, or control to install.

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