Determination of selected quaternary ammonium compounds by liquid chromatography with mass spectrometry. : Part II. : Application to sediment and sludge samples in Austria
Determination of selected quaternary ammonium compounds by liquid chromatography with mass spectrometry. : Part II. : Application to sediment and sludge samples in Austria
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DOI：
10.1016/j.envpol.2006.07.016
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发表时间：
2007-03-01
影响因子：
8.9
通讯作者：
Gans, Oliver
中科院分区：
文献类型：
--
作者：
Martinez-Carballo, Elena;Gonzalez-Barreiro, Carmen;Gans, Oliver
Soxhlet extraction and high-performance liquid chromatography (HPLC) coupled to tandem mass spectrometry detection (MS/MS) was used for the determination of selected quaternary ammonium compounds (QACs) in solid samples. The method was applied for the determination of alkyl benzyl, dialkyl and trialkyl quaternary ammonium compounds in sediment and sludge samples in Austria. The overall method quantification limits range from 0.6 to 3 mu g/kg for sediments and from 2 to 5 mu g/kg for sewage sludges. Mean recoveries between 67% and 95% are achieved. In general sediments were especially contaminated by C12 chain benzalkonium chloride (BAC-C12) as well as by the long C-chain dialkyldimethylammonium chloride (DDAC-C18) with a maximum concentration of 3.6 mg/kg and 2.1 mg/kg, respectively. Maxima of 27 mg/kg for DDAC-C10, 25 mg/kg for BAC-C12 and 23 mg/kg for BAC-C14 were determined for sludge samples. The sums of the 12 selected target compounds range from 22 mg/kg to 103 mg/kg in the sludge samples. (c) 2006 Elsevier Ltd. All rights reserved.
