Rapid screening of haloacetamides in water using salt-assisted liquid-liquid extraction coupled injection-port silylation gas chromatography-mass spectrometry

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題名:	Rapid screening of haloacetamides in water using salt-assisted liquid-liquid extraction coupled injection-port silylation gas chromatography-mass spectrometry
作者:	丁望賢;Chen, Tzu-Ling;Tzing, Shin-Hwa;Ding, Wang-Hsien
貢獻者:	理學院化學學系
關鍵詞:	Acetamides - analysis;byproducts;centrifugation;disinfection;drinking water;Environmental Monitoring - methods;ethyl acetate;Gas Chromatography-Mass Spectrometry;GC–MS;Haloacetamides;Limit of Detection;Liquid-Liquid Extraction;Nitrogen - analysis;Nitrogenous disinfection by-products;quantitative analysis;rapid methods;Salt-assisted liquid–liquid extraction;screening;silylation;Sodium Chloride - chemistry;sodium sulfate;statistical analysis;Sulfates - chemistry;swimming pools;Water - chemistry;Water analysis;Water Pollutants, Chemical - analysis
日期:	2015-01-01
上傳時間:	2026-04-21 14:33:24 (UTC+8)
出版者:	Elsevier;Netherlands: Elsevier B.V
摘要:	摘要： •SALLE coupled injection-port silylation GC–MS was successfully used to analyze haloacetamides.•This method rapidly determined haloacetamides in drinking and swimming pool water.•The method provides good precision and detection limits at the sub-μg/L level.•It is an eco-friendly method for the proposed green sample preparation technique. The rapid screening of trace amounts of the nitrogenous disinfection by-products, haloacetamides (HAcAms), in drinking and swimming pool water was performed by a simple and reliable procedure based on salt-assisted liquid–liquid extraction (SALLE) combined with injection-port silylation gas chromatography–mass spectrometry (IPS-GC-MS) method. The optimal SALLE conditions involved the injection of 4-mL of ethyl acetate into a 10-mL water sample (pH 7) containing 3-g of sodium sulfate. After vortex extraction for 1min and centrifugation, 10μL of the extract (mixed with 1μL of MTBSTFA) was directly determined by IPS-GC-MS. The limits of quantitation (LOQs) were determined to be 0.03–0.3μg/L. Precision, as indicated by relative standard deviations (RSDs), was less than 10% for both intra- and inter-day analysis. Accuracy, expressed as the mean extraction recovery, was between 76% and 94%. The SALLE plus IPS-GC-MS was successfully applied to quantitatively determine HAcAms from drinking and swimming pool water samples, and the total concentrations of the compounds ranged from 0.43 to 4.03μg/L. 其他題名： J Chromatogr A 出版者： Netherlands: Elsevier B.V 出版日期： 2015-11-27 出處： Journal of Chromatography A, 2015-11, Vol.1422, p.340-344 版權： 2015 Elsevier B.V. 版權： Copyright © 2015 Elsevier B.V. All rights reserved. 識別號： ISSN: 0021-9673 識別號： ISSN: 1873-3778 識別號： EISSN: 1873-3778 識別號： DOI: 10.1016/j.chroma.2015.10.047 識別號： PMID: 26518495
顯示於類別:	[化學學系] 期刊論文

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