This customized Agilent 7890B Gas Chromatography system is equipped with a gas sampling valve at the inlet which is designed for direct gas sample tests. Two detectors, Thermal Conductivity Detector ...

Equipment for gas chromatography, liquid chromatography and mass spectrometry is complex, with multiple subsystems that control the flow of sample analyte, carrier gas and solvent fluids. The ...

This paper describes a new modular concept that instrument manufacturer has undertaken to integrate latest valve technology, into a handling, plug-in module, full incorporating heating control of the ...

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 an innovative technique that uses an inert carrier gas for separating and quantitating vaporized compounds. It is based on principles similar to column permeation chromatography, ...

A recent article explained the role of Gas Chromatography-Mass Spectrometry (GC/MS) in the analytics laboratory. The current article focuses on reviewing the technology used for preparing volatile ...

What is gas chromatography and liquid chromatography? Gas chromatography is a chromatographic method that uses gas as a mobile phase. The sample flows through the gas system and is gasified before ...

This report concerns a benchtop prototype instrument containing a gas chromatographic microanalytical system (μGC) designed for the selective determination of multiple airborne volatile organic ...

ABSTRACT Gasoline Homogeneous Charge Compression Ignition (HCCI) combustion has been studied widely in the past decade. However, in HCCI engines using negative valve overlap (NVO), there is still ...