Determination of Volatile Low-Molecular-Weight Amines in Water by Capillary Electrophoresis after Headspace Microextraction

Autor:	M. Ya. Kamentsev, Irina Timofeeva, Yu. Malinina, Leonid Moskvin, N. M. Yakimova, Irina Kuchumova
Rok vydání:	2019
Předmět:	Diethylamine Chromatography Methylamine 010401 analytical chemistry Trimethylamine 010402 general chemistry 01 natural sciences 0104 chemical sciences Analytical Chemistry chemistry.chemical_compound Capillary electrophoresis chemistry Standard addition Ammonium Ethylamine Dimethylamine
Zdroj:	Journal of Analytical Chemistry. 74:27-31
ISSN:	1608-3199 1061-9348
DOI:	10.1134/s1061934819070153
Popis:	A method for the simultaneous determination of ammonium and seven volatile alkylamines (methylamine, dimethylamine, trimethylamine, ethylamine, n-propylamine, isopropylamine, and diethylamine) in aqueous media by capillary electrophoresis after headspace microextraction into a 5-μL drop of a 0.01 M solution of H3PO4 was developed. A solution containing 2 mM acridine, 20 mM acetic acid, and 0.05% Tween 20 was chosen as a background electrolyte for indirect photometric detection. Hydrodynamic sample injection was used. The method was tested using the samples of drinking water with the addition of ammonium and alkylamines. The accuracy of the results was confirmed by a standard addition method. The method developed provides an analytical range from 0.003 to 20 mg/L.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f73cee322cf486052b4fe3e681826042 https://doi.org/10.1134/s1061934819070153 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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