Monitoring Wells Applications in Latin America

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    Analysis of Isocyanates Using the ASSET™ EZ4-NCO Dry Sampler

    Isocyanates are used as a raw material to produce a number of products . Personal exposure can occur while the products made with isocyanates are being applied, or when the materials are removed by grinding or thermal degradation. Workers who are exposed to these compounds are at risk for respiratory disorders and asthma. The highly reactive nature of the isocyanate compounds and the low occupational exposure limits put high demands on both sampling and analytical techniques for monitoring of isocyanates in air. We investigated the performance of the LC-MS and LC-MS-MS methods in the analysis of isocyanates using the new ASSET™ EZ4-NCO Dry Sampler. We found that the analytical method can successfully reach the quantitation limit for most isocyanates of 5 ng/mL in the final sample when LC-MS-MS analysis was used and the quantitation limit of 10 ng/mL when LC-MS analysis was used. All 11 compounds were well-resolved chromatographically using a 15 cm Ascentis Express C18 column.

    By Merck KGaA, Darmstadt, Germany Office in LATIN AMERICA.

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    Sampling and drilling equipments for the mining industry

    AMS, Inc. has been a leading provider of high quality sampling equipment since 1942. AMS sampling equipment is primarily used for environmental, geotechnical, and remediation uses as well as soil, soil gas, and groundwater monitoring. In addition, AMS makes PowerProbe direct push/hollowstem auger drill rigs for environmental and geotechnical drilling activities. AMS also manufactures and offers direct push tooling, drilling equipment, accessories, and expendables for soil sampling, groundwater sampling and monitoring well installations.

    By Art’s Manufacturing and Supply, Inc. (AMS Inc.) Distributor in Campinas, BRAZIL.

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    Monitoring solutions for the process monitoring

    Maintain specification in your process stream or bench top setup with a Cerex process analyzer. Cerex UV3000 F Series analyzers accurately detect gases from ppb level to percent level concentrations via a fiber coupled probe for precise control of a process stream. The F series are also well suited to fiber couple to a custom cell for laboratory analysis, and feature user programmable alarm levels to control process functions or give warning when a process filter needs replacement. Cerex analyzers are also available customized to customer specification.

    By Cerex Monitoring Solutions, LLC. Distributor in São Paulo - SP, BRAZIL.

  • Analysis of Isocyanates Using the ASSET™ EZ4-NCO Dry Sampler

    Isocyanates are used as a raw material to produce a number of products . Personal exposure can occur while the products made with isocyanates are being applied, or when the materials are removed by grinding or thermal degradation. Workers who are exposed to these compounds are at risk for respiratory disorders and asthma. The highly reactive nature of the isocyanate compounds and the low occupational exposure limits put high demands on both sampling and analytical techniques for monitoring of isocyanates in air. We investigated the performance of the LC-MS and LC-MS-MS methods in the analysis of isocyanates using the new ASSET™ EZ4-NCO Dry Sampler. We found that the analytical method can successfully reach the quantitation limit for most isocyanates of 5 ng/mL in the final sample when LC-MS-MS analysis was used and the quantitation limit of 10 ng/mL when LC-MS analysis was used. All 11 compounds were well-resolved chromatographically using a 15 cm Ascentis Express C18 column.

    By MilliporeSigma Office in Sao Paulo, BRAZIL.

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