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SummaryThe use of combined gas chromatography-mass spectrometry in forensic chemistry is demonstrated in 13 cases where various substances had to be isolated and identified, the substance was present in small amounts in some samples while in others the sample available was very small. 出版机构：Springer Verlag 刊物名称：International Journal of Legal Medicine 出版时间：1971 ISSN：0937-9827 数据源：报刊文摘
The elution positions of 92 ninhydrin positive compounds on a single column amino acid analyzer using Efron's buffer gradient are presented. 出版机构：Taylor & Francis 刊物名称：Analytical Letters 出版时间：1971 ISSN：0003-2719 数据源：报刊文摘
ensitive primary amine assay, capable of detecting 10-11 g. and utilizing the determination of the amine N-2, 4-dinitrophenyl derivative by electron-capture gas chromatography is described. The method is exemplified by the determination of cyclohexylamine in sodium cyclamate. 出版机构：Taylor & Francis 刊物名称：Analytical Letters 出版时间：1971 ISSN：0003-2719 数据源：报刊文摘
Combining a simple chromatographic system on celite microcolumns with partially specific antisera as binding reagents, simultaneous radioimmunoassay of progesterone, 17-hydroxyprogesterone, and estradiol-17B could be performed on the same aliquot of plasma. 出版机构：Taylor & Francis 刊物名称：Analytical Letters 出版时间：1971 ISSN：0003-2719 数据源：报刊文摘
n account is given of the preparation, separation and detection of volatile fluorides. These fluorides are formed by the reaction of chlorine trifluoride with the elements in a specially designed PTFE reaction vessel enclosed in an HF coil. 出版机构：Taylor & Francis 刊物名称：Analytical Letters 出版时间：1971 ISSN：0003-2719 数据源：报刊文摘
The chromatography of a series of primary aromatic amines is studied on papers composed of pure cellulose and carboxy-methylcellulose with water, acetic acid and an acetate buffer as solvents. 出版机构：Taylor & Francis 刊物名称：Analytical Letters 出版时间：1971 ISSN：0003-2719 数据源：报刊文摘
At or above 150?C, the rates of catalyzed and non-catalyzed silylation reactions with these reagents are s imilar. 出版机构：Taylor & Francis 刊物名称：Analytical Letters 出版时间：1971 ISSN：0003-2719 数据源：报刊文摘
The use of gas chromatography with flame photometric detection provides a convenient means of detecting sulfur-containing compounds in the gas phase of cigarette smoke. Application of the method casts doubt on currently held views about the composition of the sulfur-containing portion of smokes. 出版机构：Taylor & Francis 刊物名称：Analytical Letters 出版时间：1971 ISSN：0003-2719 数据源：报刊文摘
Conditions for the simultaneous separation and identification of as many as ten different metal ions have been established using the technique of reversed-phasethin-layer chromatography. 出版机构：Taylor & Francis 刊物名称：Analytical Letters 出版时间：1971 ISSN：0003-2719 数据源：报刊文摘
Oxime derivatives (methoxime, benzyloxime, trimethylsilyloxime) of 17-ketosteroids will, under some gas chromatographic conditions, undergo Beckmann fission in the injector zone. The result of this effect is partial or total conversion of the steroid derivative to a nitrile. 出版机构：Taylor & Francis 刊物名称：Analytical Letters 出版时间：1971 ISSN：0003-2719 数据源：报刊文摘
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