Dispersive micro-solid phase extraction combined with gas chromatography-chemical ionization mass spectrometry for the determination of N-nitrosamines in swimming pool water samples

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/100203

Title:	Dispersive micro-solid phase extraction combined with gas chromatography-chemical ionization mass spectrometry for the determination of N-nitrosamines in swimming pool water samples
Authors:	丁望賢;Fu, Ssu-Chieh;Tzing, Shin-Hwa;Chen, Hsin-Chang;Wang, Yu-Chen;Ding, Wang-Hsien
Contributors:	理學院化學學系
Keywords:	Adsorbents;Analytical Chemistry;Biochemistry;Carbon;Characterization and Evaluation of Materials;Chemistry;Chemistry and Materials Science;Dimethylnitrosamine - analysis;Dimethylnitrosamine - isolation & purification;Extraction;Food Science;Gas chromatography;Gas Chromatography-Mass Spectrometry - methods;Ionization;Laboratory Medicine;Limit of Detection;Mass spectrometry;Monitoring/Environmental Analysis;Nitrosamines - analysis;Nitrosamines - isolation & purification;Original Paper;Solid Phase Extraction - methods;Standard deviation;Swimming Pools;Water - analysis;Water Pollutants, Chemical - analysis;Water Pollutants, Chemical - isolation & purification
Date:	2012-02-01
Issue Date:	2026-04-21 13:53:31 (UTC+8)
Publisher:	Springer Verlag;Berlin/Heidelberg: Springer-Verlag
Abstract:	摘要： A simple sample pretreatment technique, dispersive micro-solid phase extraction, was applied for the extraction of N -nitrosodimethylamine (NDMA) and other four N -nitrosamines (NAs) from samples of swimming pool water. The parameters affecting the extraction efficiency were systematically investigated. The best extraction conditions involved immersing 75 mg of carbon molecular sieve, Carboxen™ 1003 (as an adsorbent), in a 50-mL water sample (pH 7.0) containing 5% sodium chloride in a sample tube. After 20 min of extraction by vigorous shaking, the adsorbent was collected on a filter and the NAs desorbed by treatment with 150 μL of dichloromethane. A 10-μL aliquot was then directly determined by large-volume injection gas chromatography with chemical ionization mass spectrometry using the selected ion storage mode. The limits of quantitation were <0.9 ng/L. The precision for these analytes, as indicated by relative standard deviations, were <8% for both intra- and inter-day analyses. Accuracy, expressed as the mean extraction recovery, was between 62% and 109%. A preliminary analysis of swimming pool water samples revealed that NDMA was present in the highest concentration, in the range from n.d. to 100 ng/L. 其他題名： Anal Bioanal Chem 出版者： Berlin/Heidelberg: Springer-Verlag 出版日期： 2012-02 出處： Analytical and bioanalytical chemistry, 2012-02, Vol.402 (6), p.2209-2216 資源來源： EBSCOhost Academic Search Premier 版權： Springer-Verlag 2012 識別號： ISSN: 1618-2642 識別號： ISSN: 1618-2650 識別號： EISSN: 1618-2650 識別號： DOI: 10.1007/s00216-011-5681-0 識別號： PMID: 22222914
Appears in Collections:	[Department of Chemistry] journal & Dissertation

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