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Colorimetry Applications

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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...

    By Merck KGaA, Darmstadt, Germany based in Darmstadt, GERMANY.

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    Pool Water Testing / Spa Water Testing

    Anyone and everyone who is responsible for operating and maintaining a swimming pool or spa has to test, monitor, and control complex, interdependent chemical factors that affect the quality of water bathers are immersed in. Additionally, aquatic facilities operators must be familiar with all laws, regulations, and guidelines governing what these parameters should be.

    By Myron L Company based in Carlsbad, CALIFORNIA (USA).

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    Direct AA Mercury determination in cosmetics

    INTRODUCTION

    High mercury concentration can be found in such cosmetic products as skin lightening soaps and creams, makeup cleansing products, and mascara.

    Mercury in cosmetics exists as inorganic and organic compounds. Inorganic mercury (e.g. ammoniated mercury) is used in skin lightening soaps and creams. Organic mercury compounds, such as thiomersal, are used as cosmetic preservatives in makeup cleansing products and mascara.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Direct atomic absorption mercury determination in tissues and biological samples

    INTRODUCTION

    Mercury and its compounds are highly toxic substances fo r humans. It occurs naturally and exists in various forms: elemental (or metallic); inorganic (e.g. mercuric chloride); and organic (e.g., methyl- and ethylmercury). These forms all have different toxicities and implications for health. Among naturally occurring mercury compounds, methylme rcury exerts a significant influence (neurotoxic action) on human health.

    By Lumex Instruments Group based in Mission, BRITISH COLUMBIA (CANADA).

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    Instruments and analyzers for measuring spectral irradiance

    Spectral irradiance is the irradiance of a surface per unit frequency or wavelength. spectral irradiance of a wavelength spectrum is measured per watts per square metre per nanometre (W·m−2·nm−1). Spectroradiometers are devices designed to measure the spectral power distribution of a source. From the spectral power distribution, the radiometric, photometric, and colorimetric quantities of light can be determined in order to measure, characterize, and...

    By EKO Instruments based in San Jose, CALIFORNIA (USA).

  • 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...

    By MilliporeSigma based in Bellefonte, PENNSYLVANIA (USA).

  • Freeze Drying

    Lyophilization, commonly referred to as freeze drying, is the process of removing water from a product by sublimation and desorption. The freeze drying process is optimised by the introduction of solvents and gas species to improve product quality and to enhance the drying process. Hiden's gas analysers provide detailed information about the gas/vapour composition during both the primary and secondary drying phases. Detection of the on-set of the secondary drying phase is readily detected. Analysis during the...

    By Hiden Analytical Ltd. based in Warrington, UNITED KINGDOM.

  • Digestate drying

    The Stela Laxhuber drying system is a highly efficient method to dry digestates with low-caloric heat. Low emissions as well as a high-quality final product with low consumption values are the striking advantages of the STELA belt dryer technology.

    By STELA Laxhuber GmbH based in Massing, GERMANY.

  • Monitoring engineering systems for wastewater treatment industry

    Sometimes an `off the shelf` water quality monitoring product is just not available and it is necessary to engineer a complete bespoke monitoring solution. System integration demands a diverse range of abilities. PPM is experienced in designing the correct suite of instrumentation combining manufactured, distributed and factored products.

    By Pollution & Process Monitoring Ltd based in Sevenoaks, UNITED KINGDOM.

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