Environmental Laboratory New Autosampler for Atomic Absorption Spectrometers and TOC Analysers
Analytik Jena AG (Germany) is introducing a new generation of autosamplers for a wide range of products. The sampler will be used for the AAS family of products - contrAA, novAA, and ZEEnit - as well as the TOC Analyzers of the multi N/C series. A high quality standard in combination with the optimisation of the manufacturing processes and use of materials have been implemented sustainably.
“Functionally, the sampler offers the same advantages as its predecessor, but has also been optimised in terms of user friendliness and effi ciency. Users can also select between a larger selection of possible sample positions for the sample racks - allowing the sampler to optimally adapt to a laboratory’s individual needs,” says Torsten Olschewski, Head of the Analytical Instrumentation division at Analytik Jena AG. While new deliveries will only come with the new accessories, AAS and TOC devices that have already been installed can also be modifi ed for the new autosampler. “From a user standpoint, another advantage of the AAS sampler is that it is directly mounted on the base device. It requires no additional space in the laboratory. On top of that, the optional intelligent automatic dilution feature saves users some work,” explains Olschewski.
The fl ame analysers of the AAS product families have the new autosampler AS-F or the AS-FD with integrated diluter, automatic intelligent dilution and liquid handling module with racks for either 54 or 139 samples.
The AS-GF model with integrated diluter, automatic intelligent dilution in the graphite furnace or sample container as well as sample rack with 108 positions belongs to the graphite tube analysers of the AAS product families.
The TOC analysers that are compatible with fl ow injectors are also now equipped with the new autosamplers. The particularly fl exible sampler AS vario offers six different sample trays: with 20, 47 (including automatic dilution feature), 52, 72, 100 as well as one with 146 positions, which is specially suited for high-throughput laboratories with its very high sample size.
The sampler model AS 10 is available for laboratories with lower sample numbers - they do not need to do without automation, too.
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Mercury and Petrochemicals - Experience, Performance, Reliability and Support
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For the last 30 years PS Analytical (UK) has been at the forefront of trace mercury (Hg) determinations from petrochemical samples. It has never been more important to understand the fate of Hg in all aspects of oil and gas exploration, refi ning and production. The corrosive nature of Hg reacting with aluminium; the fate of Hg within a process itself; the concentration of Hg in feedstocks that could destroy expensive catalysts; as well as the OH&S concerns that Hg poses are, of course, well documented and are often a key driver in operational decisions. For these reasons much effort is spent on Hg removal technology and PSA partners with many companies to monitor and help manage this Hg removal process. This partnership happens from the research bench through to production with PSA taking a pivotal role in ensuring successful removal technologies are deployed in the real world.
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PSA have analysers to suit all aspects of the monitoring and analysis of Hg, including laboratory instruments and on-line analysers for gases and liquids. More recently PSA have provided solutions for speciation (fractionation) analysis and also waste water systems associated with petrochemical processes.
Employing Atomic Fluorescence as a means of detection the PSA analysers provide ultimate detection performance. With literally thousands of systems in the fi eld today, and support networks in Europe, USA and SE Asia, PSA offers the ideal package of performance, reliability and support.
EPA-Approved Pesticide Sulfoxafl or Standards Available
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Chem Service, Inc. (USA) is one of the few companies now offering neat and solution standards of Dow AgroSciences’ new Environmental Protection Agency-approved pesticide sulfoxafl or. In May 2013, the EPA gave the sulfoximine - a new class of chemical pesticide - unconditional approval for use in agricultural production.
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Sulfoxafl or is the active ingredient in pesticides used for canola, soybeans, cotton, wheat as well a majority of vegetables and hundreds of other crops. This new Chem Service, Inc. product has been proven to be safe for agricultural workers and farmers when used in accordance with EPA guidelines. Sulfoxafl or was successfully used prior to its EPA-approval when it was given emergency clearance for use on insecticide-resistant pests infesting cotton plants in Louisiana, Mississippi and other Southern U.S. states.
Despite its government approval, some beekeeping groups have come out against the pesticide for fear that it will interfere with bees’ ability to pollinate effectively. Dow AgroSciences came to sulfoxafl or’s defense pointing out that the new pesticide is not dangerous to bees and has been thoroughly researched. It is also a sulfoxamine, not a bee-damaging neonicitinoid - which is good news for farmers looking to deal with neonicitinoid-resistant pests.
In fact, the EPA explained that the pesticide may actually aid bees in the long run by supplanting other insecticides that are currently in use and more damaging to the bee population.
“As sulfoxafl or has greater effi cacy than many of the currently registered insecticides,” the EPA wrote, “it is more likely that sulfoxafl or will be used in place of numerous applications of less effective insecticides and could reduce overall honey bee insecticide exposure.”
Sulfoxafl or has the support of a number of prominent U.S. food organisations including the United Fresh Produce Association, the American Soybean Association and many others.
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www.envirotech-online.com IET Annual Buyers’ Guide 2014/15 7/18/14 11:57 AM
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