烟草变更第1篇:用于确定香草的定性和量化手段的一种方法消息

Q3 Agricultural and Biological Sciences

Beitrage zur Tabakforschung International/ Contributions to Tobacco Research Pub Date : 1970-01-01 DOI:10.2478/cttr-2013-0252

E. Nesemann, F. Seehofer

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引用次数: 0

摘要

摘要建立了香兰素、乙基香兰素、香豆素和二氢香豆素的定性定量测定方法。烟草提取物提取纯化后，采用薄层色谱法对化合物进行定性分析。采用气相色谱法进行定量测定:直接测定香豆素和二氢香豆素，经硅基化后以三甲基硅基衍生物的形式测定香兰素和乙基香兰素。检出限:薄层色谱= 1µg，气相色谱= 0.02µg。所得结果的变异系数为香兰素为2.4%，香豆素为6.7%

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The Determination of Tobacco Additives1st Report: A Method for the Qualitative and Quantitative Determination of Vanillin, Ethylvanillin, Coumarin and Dihydrocoumarin in Tobacco and Tobacco Products/Zur Bestimmung von Tabakadditiven: 1. Mitteilung: Eine Methode zur qualitativen und quantitativen Bes

Abstract A screening method has been developed for the qualitative and quantitative determination of vanillin, ethylvanillin, coumarin and dihydrocoumarin. The compounds are qualitatively determined by thin-layer chromatography after extraction of tobacco and purification of the extract. The quantitative determination is made by gas chromatography: Coumarin and dihydrocoumarin are determined directly and vanillin and ethylvanillin after silylation in the form of trimethylsilyl derivatives. Detection limit: thin-layer chromatography = 1 µg, gas chromatography = 0.02 µg. The coefficient of variation of the results obtained amounts to 2.4 % for vanillin and to 6.7 % for coumarin

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Beitrage zur Tabakforschung International/ Contributions to Tobacco Research Agricultural and Biological Sciences-Agronomy and Crop Science

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