There are numerous approaches that can be used during an environmental investigation to evaluate subsurface conditions. These can vary based on the media requiring investigation and the ultimate ...

LAKE FOREST, CA–The new SM100 Sampling Pump Module from General Monitors draws combustible or toxic gases at 0.05 to 1 LPM from monitored areas to a gas detector, making it easier and cost effective ...

Design and development of an electrohydraulically actuated gas sampling valve is presented for use in auto engine combustion studies. The valve was developed with particular emphasis on sampling ...

Gas chromatography is widely used for monitoring chemical reactions, industrial processes, and volatile compounds, but conventional systems are bulky, costly, and energy intensive. Microscale gas ...

Revision of Chapter 14.1 of the API Manual of Petroleum Measurement Standards (MPMS) was published in June 2001. This revision is the result of 7 years of an extensive natural gas sampling methods ...

OSHA issues citations and penalties if businesses violate permissible exposure limits (PEL). PELs are legal limits designed to control employee exposure to hazardous substances in an eight-hour period ...

In this protocol, the sample (which could be a bulk or heterogeneous fluid, or a greasy surface) is treated with a neutral desorption (ND) sampling gas beam, and the resulting analyte mixtures are ...

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Headspace sampling is an ideal way of introducing a sample into a GC. It avoids the introduction of involatile or high-boiling contaminants from the sample matrix and it can often be used for the ...