Gas Chromatography of Some Nitrofuran Derivatives

Statistical Analysis of Some Gas Chromatography Measurements

The National Bureau of Standards has certified Standard Reference Materials (SRMs) for the concentration of polychlorinated biphenyls (PCBs) in hydrocarbon matrices (transformer and motor oils). The certification of these SRMs involved measurements of extremely small concentrations of PCBs made by gas chromatography. Despite the high accuracy of the measurement techmique, the correlated data ca...

The identification of some furan derivatives in glucose-lysine model system by gas chromatography/ mass spectrometry

Colour, taste and flavour are among the most important factors in accepting food products on market. Furan derivatives, beside other flavour compounds, are important for the aroma of thermic processed food. This study presents the results of the separation, identification and quantification of some furan derivatives generated in the glucose-lysine model system. The volatile compounds, extracted...

The carcinogenic activity of some 5-nitrofuran derivatives in the rat.

Three 5-nitrofuran derivatives showed carcinogenic activity when fed to female Holtzman rats at levels of 0.1 to 0.3% in a commercial diet for up to 44.5 weeks, while 2 other 5-nitrofuran derivatives and 5,5-diphenylhydantoin were inactive. Formic acid 2-[4-(5-nitro-2-furyl)-2-thiazolyl]hydrazide induced benign and malignant tumors of the mammary glands, adenomas or adenocarcinomas of the kidne...

Gas chromatography of cannabis constituents and their synthetic derivatives.

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...