Water & Wastewater Applications in Europe

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    Formaldehyde and Acetaldehyde Determination in Air Using Fully Automated On-Line Desorption and Analysis of DNPH Cartridges

    Airborne aldehydes and ketones are collected by passing air through a cartridge containing 2,4-dinitrophenylhydrazine (DNPH). Carbonyl compounds react with the DNPH to form hydrazones, which are immobilized on the cartridge. These compounds can be easily eluted from the cartridge with acetonitrile and analyzed by HPLC with UV detection. Traditionally, this analysis including the workup contains a series of manual steps, which can become time-consuming and could incur experimental error. Automating the extraction...

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

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    Analysis of Herbicides in Drinking Water

    Herbicides are used throughout the world to combat the growth of unwanted plant life. These polar compounds are hydrophilic, so they may find their way into drinking water sources. While gas chromatography has historically been the preferred technique for analysis of herbicides in water samples, the use of LC-MS/MS for this application is gaining acceptance. This is due to the power of MS/MS to provide detailed identification of multiple analytes, but also in part due to the variety of HPLC stationary phases...

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

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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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    Test Kits and Photometric Methods for agriculture, in food or water analysis

    When analyzing water and food, trust plays a very important role. Only careful analysis using tests that are performed correctly and are delivering sound results will help to maintain and improve our quality of life. With ready-to-use tests and test systems from Merck Millipore, you can trust your results. Our broad product range covers everything from water analysis to the control of production process up to the measurement of special food parameters.

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

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    Marine monitoring solutions for the SO2/CO2/NOx monitoring

    Process control of a SO2 scrubber on a ship is a challenge due to wet and corrosive gases. In such environment, extractive gas sampling systems require high levels of maintenance in order to operate correctly. OPSIS monitoring system solves this by using an optical, non-contact, cross-duct technique. A light beam is sent across the duct or stack to be measured, and the captured light is sent through an optical fibre cable to an analyser. The analyser measures SO2, CO2 and NOx concentrations using UV and IR...

    By Opsis AB based in Furulund, SWEDEN.

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    Emissions Monitoring for Chemical Plants

    The Opsis gas monitoring system is designed for monitoring in stacks and gas ducts in chemical industries, both in order to increase plant efficiency and to monitor emissions. The Opsis systems have been internationally approved by e.g. the German TÜV and the U.S. EPA.

    By Opsis AB based in Furulund, SWEDEN.

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    Continuous emissions monitoring for cement industry

    Process control and emissions monitoring in cement plants, can be a challenge due to the dusty and corrosive environment. OPSIS provides an accurate system that will operate with high performance and a minimum of maintenance.

    By Opsis AB based in Furulund, SWEDEN.

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    Continuous emissions monitoring for palm oil plants

    Make more out of your mill. OPSIS tested and approved monitoring systems provide cost-effective and reliable on-line monitoring of several gas compounds, such as both high and low concentrations of methane, moisture, carbon dioxide and hydrogen sulphide, at several locations.

    By Opsis AB based in Furulund, SWEDEN.

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    Process monitoring solutions for O2 oxygen monitoring

    OPSIS EEx Zone 1 and 2 certified monitoring equipment meets the demands for monitoring in harsh areas with a high amount of corrosive gaseous compounds. OPSIS offers two monitoring solutions, TDL (Tuneable Laser Diode) technology with ER060L-EEx emitter and receiver set, for harsh installations, and OPSIS O2000 oxygen monitor. The most suitable technique is used for the application at hand.

    By Opsis AB based in Furulund, SWEDEN.

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    Marine monitoring solutions for the O2 oxygen monitoring

    OPSIS provides various monitoring solutions for marine vessels. One application is to monitor in Inert Gas Generators (IGG) onboard ships to control the quality of the nitrogen. The reliable systems supply accurate values continuously, and presents it directly to the control system.

    By Opsis AB based in Furulund, SWEDEN.

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    Ambient air quality monitoring solutions for remote sensing of ship emissions

    New regulation forces ships to lower the emissions of SO2. Ships travelling in SECA areas has to either run on low sulphur fuel, or install SO2 scrubbers. To measure the SO2 emissions from a ship is not an easy task. OPSIS provides the Port Authorities with a unique measurement principle where the emissions from the ship is measured remotely. Light is passing the emissions and by analyzing the light, concentrations of SO2 can be measured.

    By Opsis AB based in Furulund, SWEDEN.

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    Continuous emissions monitoring for chemical industry

    Process control and emissions monitoring in a chemical plant is a challenge due to corrosive gases, high dust load, and high temperatures. To use an extractive system in this environment will demand a lot of maintenance.

    By Opsis AB based in Furulund, SWEDEN.

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