trace gas monitoring Articles

58 Results found

Current filtering criteria

You can remove a filter by clicking on the x
  • Keyword: trace gas monitoring ×

Using Spectroscopy for Used Oil Analysis

by Spectro Scientific  (Sep. 2, 2016)

Evaluating the wear condition of equipment is a primary requirement of condition monitoring programs. Oil wetted equipment will generate wear particles throughout its lifetime, the nature and rate of the wear varies from initial ...

Monitoring landfill gas

by Geotech  (Nov. 23, 2011)

Infrared absorption Infrared absorption is usually the preferred method for measuring methane and carbon dioxide. Most gases absorb radiation in the infrared region. The wavelength of radiation that is absorbed is determined by the natural vibration frequencies of the molecule. These natural frequencies will depend on several factors. Thus ...

Monitoring landfill gas case study

by Geotech  (Nov. 24, 2015)

Infrared absorption Infrared absorption is usually the preferred method for measuring methane and carbon dioxide. Most gases absorb radiation in the infrared region. The wavelength of radiation that is absorbed is determined by the natural vibration frequencies of the molecule. These natural frequencies will depend on several factors. Thus ...

Nanostructured thin films of Ba doped In2O3 for selectively monitoring trace levels of NOx

by Inderscience Publishers  (Aug. 18, 2010)

Nanostructured thin films of Ba-doped indium oxide have been examined for monitoring ppm levels of NOx in ambient air, and their response patterns have been recorded at different operating conditions. These films are found to be capable of sensing down to 0.5 ppm NOx concentration in air. The optimum operating temperature for sensing is found to ...

Oxygen Monitor for FOUPs in Semiconductors and Cleanrooms

by PureAire Monitoring Systems, Inc  (Sep. 10, 2015)

Over time, the contamination control requirements in the semiconductor industry have become more stringent. Employees now must spend more time adhering to cleaning protocols to preserve the sanitary nature of the environment and comply with regulations. The front-end unified pod (or FOUP) began appearing in semiconductors in the 1990s, ...

A Guide to Oil in Water Monitoring for Environmental Compliance

by Arjay Engineering Ltd.  (Mar. 1, 2014)

Applications for industrial oil in water monitoring can vary greatly. In upstream and midstream oil and gas production applications, monitoring separation efficiencies is key to optimize production rates, preventative maintenance, chemical use, flow, and environmental compliance. Separated water from the oil is called produced water and it must ...

Permanent Monitoring Systems for Seabed Leakage Detection

by Franatech GmbH  (May 19, 2015)

Seabed leaks Where do they come from? Natural vents: Faults, Pockmarks, and Chimneys Melting hydrates Shallow gas layers Long term leakage along well casings (cracked cement) Injection: fault re-activation/fracturin Lost well control nd failing barriers The mysterious pockmarks at the ...

PureAire Oxygen Analyzers & Oxygen Monitors for Nitrogen Generators

by PureAire Monitoring Systems, Inc  (Jul. 11, 2016)

Nitrogen has many uses in industrial applications where oxidation would be undesirable. From carbonizing beer to preserving food, reducing fire danger, and cleaning equipment, nitrogen is a safe, inexpensive gas. For companies that need a steady supply of nitrogen gas, nitrogen generators work well. Learn about the uses of nitrogen generators ...

Air Separation Plants and the Use of Oxygen Monitors

by PureAire Monitoring Systems, Inc  (May 19, 2016)

Air separation plants are critical for many different industries, from clean energy to manufacturing. Nowadays, cryogenic is the most common type of distillation used to separate air into its component gases - nitrogen, oxygen, and inert gases including helium and argon. If your industry relies on air separation for product development or ...

Analox case study: Monitoring oxygen at Cranfield airfield

by Analox Sensor Technology  (Apr. 7, 2016)

Introduction For personnel safety, monitoring of oxygen levels was required as part of an experimental field campaign based at Cranfield airfield. This experiment was undertaken by researchers in the atmospheric physics group at Imperial College London. The researchers are interested in measuring Far-infrared radiance fields in ...

FTIR resolution requirements for industrial gas analyses

by CIC Photonics, Inc.  (May 1, 2013)

FTIR Spectroscopy FTIR Spectroscopy is a widely used technique for gas analyses in industrial applications. It is a technique used in the semiconductor industry for measuring the purity of cleaning, etching, and epitreatment gases used with various process tools, reactors, and abatement devices. Among chemical companies and R&D faciltities, ...

FTIR resolution requirements for industrial gas analyzers

by CIC Photonics, Inc.  (Aug. 9, 2011)

FTIR Spectroscopy is a widely used technique for gas analyses in industrial applications. It is a technique used in the semiconductor industry for measuring the purity of cleaning, etching, and epi-treatment gases used with various process tools, reactors, and abatement devices. Among chemical companies and R&D facilities, FTIR is applied to ...

Why high temperature combustion of landfill gas?

by Hofstetter BV  (Aug. 4, 2016)

Due to the accumulation of knowledge and the tightening of environmental law, the landfill technology has increasingly become concerned with the management of trace compounds in landfill gas. With landfill gas, contamination is through sulphur, chlorine, fluorine, halogenated hydrocarbons and heavy metals. Other trace elements such as volatile ...

Sonic nozzles for gas calibrators, when simplicity provides accuracy!

by LNI Swissgas  (Nov. 1, 2014)

Gas analyser’s calibration is a task required in many applications according to either legislation or quality systems management. This is the case for Air Pollution Monitoring or Continuous Emissions Monitoring devices installed in cabinets, for continuous analysis in remote locations. Measurements in traces range are performed and ...

Praxair Selects Baseline-MOCON’s New BevAlert Gas Analyzer To Improve Detection Sensitivity Of CO2 Impurities

by MOCON - Baseline  (May 4, 2007)

Lyons, CO — Praxair, Inc. has upgraded its carbon dioxide (CO2) gas analysis with the installation of multiple BevAlert™ Model 8900 at its plants across North America and select international locations.The BevAlert Model 8900 new gas chromatograph, from Baseline-MOCON, Inc., a subsidiary of MOCON monitors trace impurities in CO2 (and other gases) ...

Teledyne Scientific Instruments - Direct Sampling MS and MS/MS for Real Time Air Monitoring

by Environics, Inc.  (Jun. 28, 2007)

Presented at the 44th ASMS Conference on Mass Spectrometry, May 12-16, 1996 Portland, OR. Published in the Proceedings of the 44th ASMS Conference on Mass Spectrometry May 12-16, 1996 Portland, OR, in press. DIRECT SAMPLING MS AND MS/MS FOR REAL TIME AIR MONITORING C. Remigi, P.T. Palmer, Dept. of Chemistry & Biochemistry, SF State ...

NASA campaign KORUS-AQ: IONICON PTR-TOF to monitor VOCs above Korea

by Ionicon Analytik Ges.m.b.H.  (Jun. 20, 2016)

Team of the University of Innsbruck and an IONICON PTR-TOFMS aboard NASA research aircraft An international team coordinated by NASA has recently investigated air pollution over the Korean peninsula. Two of IONICON’s PTR-TOFMS instruments were used to monitor volatile organic compounds (VOCs) in real-time aboard NASA’s DC-8 Flying ...

Low level moisture measurement in Natural gas using a Lunable diode laser absorption spectroscopy (tdlas) based laser case study

by Ametek Process Instruments - THERMOX  (Nov. 24, 2014)

Introduction The measurement of water vapor in natural gas has long been of industrial importance, and has been addressed by a variety of analytical techniques over the years. Chief among these techniques has been the quartz crystal microbalance (QCM) based analyzers. The QCM technology is still the workhorse for production and pipeline ...

Oil pollution in the Caspian Sea coastal waters

by Inderscience Publishers  (Mar. 21, 2006)

The study aims to investigate hydrocarbon and pollutant concentrations in the southern coastal waters of the Caspian Sea to trace their origins and nature, including the effect of the beach materials on hydrocarbons for 11 sites in Golestan, Mazandaran, and Guilan provinces. Samples were collected from sandy and rocky sites for gas chromatography ...

Need help finding the right suppliers?

Let the XPRTs do the work for you