: Twelve surface acoustic wave (SAW) device coatings were exposed to eleven chemical vapors and responses were correlated with solubility properties and coating structure to determine possible vapor/coating interaction mechanisms. Hydrogen bonding ability is implicated as a significant vapor/coating interaction mechanism. Pattern recognition schemes applied to the preliminary data aided in solubility property/response correlations. Principal component analysis demonstrated good separation of different classes of chemical vapors tested. Hierarchical clustering provided additional evidence of the correlations between solubility properties and the observed clustering. In addition, pattern recognition methods were used to determine potential selectivity of an array detector using these coatings. Learning techniques show that one fourth of the sensors can adequately separate compounds of interest from chemically similar interferences.

Correlation of surface acoustic wave device coating responses with solubility properties and chemical structure using pattern recognition

Determination of 1,4-benzodiazepines and -diazepin-2-ones in blood by electron-capture gas-liquid chromatography.

Chemical Derivatization in Gas Chromatography

https://www.gastrojournal.org/article/S0016-5085(79)80017-7/pdf

Enhanced bioavailability and decreased clearance of analgesics in patients with cirrhosis.

Systematic toxicological analysis procedures for acidic drugs and/or metabolites relevant to clinical and forensic toxicology and/or doping control.

Determination of sulphonamides by electron-capture gas chromatography. Preparation and properties of perfluoroacyl and pentafluorobenzyl derivatives.

Gas chromatographic determination of pentazocine in human plasma by means of electron-capture detection

A method for quantitative determination of nitrazepam in human plasma in the range 5 - 100 ng/ml is presented. Nitrazepam is extracted with benzene from plasma samples of 0.5 ml, methylated with methyl iodide and determined gas chromatographically with an electron capture detector of 63Ni-type. Acid dissociation constants of nitrazepam are determined and the partition properties studied with benzene, methylene chloride and diethyl ether as organic phases. The selectivity of the method with respect to the metabolites has been thoroughly studied.

Electron Capture Gas Chromatography of Nitrazepam in Human Plasma as Methyl Derivative

Electron-capture gas chromatography of sulphonamides after extractive alkylation

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Determination of sulphonamides by electron-capture gas chromatography. Preparation and properties of perfluoroacyl and pentafluorobenzyl derivatives.

Gas chromatographic determination of pentazocine in human plasma by means of electron-capture detection

Electron Capture Gas Chromatography of Nitrazepam in Human Plasma as Methyl Derivative

Electron-capture gas chromatography of sulphonamides after extractive alkylation