Analysis of solid samples using supported liquid membranes: a method for the evaluation of the release of nicotine from Swedish snuff

Autor:	Lars-Göran Danielsson, E. Luque-Pérez, Ángel Ríos, Miguel Valcárcel, Folke Ingman
Rok vydání:	1999
Předmět:	Chromatography Aqueous solution medicine.diagnostic_test Chemistry Alkaloid Biochemistry Analytical Chemistry Nicotine Absorbance Membrane Spectrophotometry medicine Environmental Chemistry Gas chromatography Snuff Spectroscopy medicine.drug
Zdroj:	Analytica Chimica Acta. 387:155-164
ISSN:	0003-2670
DOI:	10.1016/s0003-2670(99)00077-x
Popis:	A method for the evaluation of the amount of nicotine released from Swedish snuff based on the use of supported liquid membranes has been developed. The solid sample is directly placed, with minimal pre-treatment, in the membrane unit and the nicotine released from the sample passes through the membrane (polypropylene/n-undecane) into an acidic acceptor stream. This stream flows through a spectrophotometric detector allowing the measurement of nicotine absorbance at 260 nm. The influence of pH on the release of nicotine from aqueous nicotine solutions as well as from snuff has been studied. The method allows differentiating among different types of snuff depending on their nicotine content. The results of direct spectrophotometric measurements in the acceptor stream were checked against results obtained using gas chromatography.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a831253075dd03b44784fe5b0f5e54bf https://doi.org/10.1016/s0003-2670(99)00077-x Zobrazit plný text záznamu Full Text from ScienceDirect