Determination of 1,1,1,2,3,3,3-heptafluoropropane (HFP) in blood by headspace gas chromatography-mass spectrometry.

Simultaneous Determination of Disinfection By-products in Water Samples from Advanced Membrane Treatments by Headspace Solid Phase Microextraction and Gas Chromatography-Mass Spectrometry

A headspace-solid phase microextraction (HS-SPME) and gas chromatography-mass spectrometry (GC-MS) method has been developed for the simultaneously determination of 20 disinfection by-products (DBPs) in water samples from reverse osmosis (RO) membranes. Selected compounds belong to different families including: trihalomethanes (THMs), halogenated acetonitriles (HANs), halogenated nitromethanes ...

Identification of volatile organic compounds of some Trichoderma species using static headspace gas chromatography-mass spectrometry

Fungi release wide spectrum of volatile organic compounds (VOCs) that belong to several chemical groups with different biochemical origins such as monoterpenes, sesquiterpenes, alcohols, aldehydes, aromatic compounds, esters, furans, ketones, sulfur and nitrogen compounds. Trichoderma species are the most studied fungal biocontrol agents and are successfully used as biofungicides and biofertili...

Determination of ketone bodies in blood by headspace gas chromatography-mass spectrometry.

A gas chromatography-mass spectrometry (GC-MS) method for determination of ketone bodies (β-hydroxybutyrate, acetone, and acetoacetate) in blood is presented. The method is based on enzymatic oxidation of D-β-hydroxybutyrate to acetoacetate, followed by decarboxylation to acetone, which was quantified by the use of headspace GC-MS using acetone-(13)C(3) as an internal standard. The developed me...

اندازه گیری سریع ترکیبات آلی فرار در ماست به کمک دستگاه Headspace-Gas Chromatography/Mass Spectrometry

Microanalysis of carbon monoxide in decomposed blood and hepatic tissues by headspace gas chromatography and mass spectrometry

Head-Space Gas Chromatography-Mass Spectrometry (HS-GC/MS) was used to determine blood carboxyhemoglobin (COHb%), especially in cases involving blood decomposition or death, when blood extraction is impossible. Until now, the problem eluded complete solution using forensic toxicology. Therefore a method was developed using Headspace Gas Chromatography-Mass Spectrometry (HSGC/MS), which should e...