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Measurement and Testing Standard Cylinder Enhanced To Hold Higher Volume Of Precision Gas
Gasco Affiliates, LLC (USA) is once again enhancing calibration gas delivery with the launch of the 44, a standard 34-litre cylinder containing 44 litres of precision calibration gas. The new 44 features 29 percent more gas than the traditional 34-litre unit, reducing the cost per litre while also extending the life cycle of a standard 34-litre cylinder.
Gasco uses exclusively designed, reinforced, 34-litre aluminum alloy cylinders and applies its proprietary manufacturing process to safely and effectively increase the gas pressure. This process enables the standard 34-litre cylinder to hold 10 additional litres of calibration gas. The 44 holds both pure gases and gas mixtures and is approved for safe transport by the US Department of Transportation.
“Gasco is committed to leading the industry with exclusive technologies and innovations – affordable, user friendly products – that surpass marketplace expectations,” said Gasco President Tom Hanway. “Three years ago we introduced our ecosmart 116-litre refillable cylinder, followed shortly thereafter with Bump-It, our handheld unit for bump testing or checking single gas monitors. The 44 is a significant innovation that delivers an additional 10 litres at a better price per litre with all the quality control assurances of Gasco”
Reader Reply Card No New Moisture Analyser Pushes Upward Range to 500 ppm
The Halo-500-H2OTM, designed to measure higher levels of moisture in gases, is gaining notice from gas manufacturers and metrology institutes, reports Tiger Optics LLC (USA), the manufacturer that developed the product at the behest of its London-based representative.
“Any quality gas laboratory that is doing moisture analysis would be interested. The alternatives aren’t really working,” said Tim Butler, who -- as founder and sales director of Process Analyser Systems Ltd. – encouraged Tiger Optics to develop the Halo-500 instrument in 2008. Butler subsequently sold the device to The Linde Group’s BOC, the largest provider of industrial, medical and special gases in the United Kingdom and Ireland.
“The Halo-500 looks tailor-made for more applications than even we anticipated,” said Lisa Bergson,
Tiger Optics’ founder and chief executive. “Of course, from the outset, we appreciated the need of many quality assurance labs to measure samples of gas that contain 100, 200, 300 ppm or higher of moisture.”
The device’s range is tipping the scales for some buyers who had been using gas analysers based on older technologies. The Halo line, like all Tiger Optics products, utilises the patented “Continuous Wave Cavity Ring-Down Spectroscopy” technology.
In the packaged gas market, the Halo-500 covers the moisture specifications of a myriad of products. The device can measure moisture in samples such as hydrogen, helium, nitrogen, oxygen, carbon monoxide, carbon dioxide, the noble gases, and clean dry air. Renowned for its swift response, the Halo-500 permits a facility’s quality control lab to switch between different samples in a matter of seconds, instead of minutes. Even under conditions where the instrument is exposed to ambient air, the Halo-500 can achieve 90 percent of a reading in less than 3 minutes. In such facilities, the Halo-500 can be used to monitor the high-usage or “house” gases that are plumbed through work areas. The device is similarly speedy and adept at measuring moisture in gas cylinders that are reclaimed and prepared for fresh use. The Halo-500 is proving equally useful in moisture monitoring in air separation processes, and in quality checks at “fill zones” where refrigerated trucks load merchant products in liquid form.
Tiger introduced its first Halo product in 2006 as a “mini” CW-CRDS device because it offered the speed, specificity and reliability of the Reader Reply Card No 141
original Tiger tools at approximately half the price and one-quarter of its size. The original Halo measures moisture in a range from 2 ppb to 20 ppm. In 2007, Tiger unveiled its Halo+ product, designed to analyse moisture in gases down to ultra-low levels (0.4 ppb to 20 ppm) required in semiconductor fabrication plants.
“The Halo line now constitutes well over half of our sales,” said
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Bergson. Reader Reply Card No
Flexible & Durable Fibre Optics for Mid Infrared Reaction Monitoring
Accurate, real time reaction monitoring is critical if chemical process research and development is to be productive in the pharmaceutical industry. Polycrystalline mid infrared fibre optics from Fibre Photonics (UK) are flexible, durable and highly transmissive within the mid-infrared region (3300-550 cm-1). As a fibre material of choice in robust ATR immersion probes, they provide the capability to accurately monitor and quantify the formation and reactive activity of key functional groups through their individual fundamental vibrations.
Fibre Photonics provide a range of ATR mid-infrared fibre optic immersion probes as a real-time in situ reaction monitoring solution within a laboratory and production environment. Each probe can be coupled to an FTIR spectrometer by means of SMA connectors and has been designed to withstand the ever changing requirements of a development laboratory, especially where high through-put or scale up reactions monitoring are required.
Exclusive, self-filling ampoule technology, available in visual and instrumental formats.
www.chemetrics.com 1 540 788 9026 Reader Reply Card No 143 Reader Reply Card No Annual Buyers’ Guide 2011 144
Several key functional groups can be investigated using the broad spectral range of one single mid infrared immersion probe, including carbonyl, unsaturated hydrocarbon, amine and alkyl halide containing compounds. Each probe offers a real-time insight into common reactions used in the development of API’s, biofuels, fine and bulk chemicals including addition, substitution and condensation reactions as well as oxidation and reduction reactions. The close monitoring of the reactivity results in faster scale-up and reaction optimisation resulting in R&D time being saved in the laboratory.
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