Dispersive micro solid-phase extraction for the rapid analysis of synthetic polycyclic musks using thermal desorption gas chromatography-mass spectrometry

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題名:	Dispersive micro solid-phase extraction for the rapid analysis of synthetic polycyclic musks using thermal desorption gas chromatography-mass spectrometry
作者:	丁望賢;Chung, Wu-Hsun;Tzing, Shin-Hwa;Ding, Wang-Hsien
貢獻者:	理學院化學學系
關鍵詞:	Adsorbents;Analysis methods;Analysis of Variance;Analytical chemistry;Applied sciences;Chemistry;Chromatographic methods and physical methods associated with chromatography;Design analysis;Desorption;Dispersive micro solid-phase extraction;Exact sciences and technology;Extraction;Fatty Acids, Monounsaturated - analysis;Fatty Acids, Monounsaturated - isolation & purification;Freshwater;Gas chromatographic methods;Gas chromatography;gas chromatography-mass spectrometry;Gas Chromatography-Mass Spectrometry - methods;Limit of Detection;Linear Models;Mass spectrometry;Musk;Natural water pollution;Other wastewaters;Pollution;Polycyclic Compounds - analysis;Polycyclic Compounds - isolation & purification;rapid methods;Reproducibility of Results;river water;Rivers - chemistry;silica;solid phase extraction;Solid Phase Microextraction - methods;Synthetic musks;Thermal desorption-GC–MS;Wastewaters;Water analysis;Water Pollutants, Chemical - analysis;Water Pollutants, Chemical - isolation & purification;Water treatment and pollution
日期:	2013-09-13
上傳時間:	2026-04-21 14:12:19 (UTC+8)
出版者:	Elsevier;Amsterdam: Elsevier B.V
摘要:	摘要： A simple and solvent-free method for the rapid analysis of five synthetic polycyclic musks in water samples is described. The method involves the use of dispersive micro solid-phase extraction (D-μ-SPE) coupled with direct thermal desorption (TD) gas chromatography–mass spectrometry (GC–MS) operating in the selected-ion-storage (SIS) mode. The parameters affecting the extraction efficiency of the target analytes from water sample and the thermal desorption conditions in the GC injection-port were optimized using a central composite design method. The optimal extraction conditions involved immersing 3.2mg of a typical octadecyl (C18) bonded silica adsorbent (i.e., ENVI-18) in a 10mL water sample. After extraction by vigorously shaking for 1.0min, the adsorbents were collected and dried on a filter. The adsorbents were transferred to a micro-vial, which was directly inserted into GC temperature-programmed injector, and the extracted target analytes were then thermally desorbed in the GC injection-port at 337°C for 3.8min. The limits of quantitation (LOQs) were determined to be 1.2–3.0ng/L. Precision, as indicated by relative standard deviations (RSDs), was less than 9% for both intra- and inter-day analysis. Accuracy, expressed as the mean extraction recovery, was between 74 and 90%. A preliminary analysis of the river water samples revealed that galaxolide (HHCB) and tonalide (AHTN) were the two most common synthetic polycyclic musks present. Using a standard addition method, their concentrations were determined to in the range from 11 to 140ng/L. 其他題名： J Chromatogr A 出版者： Amsterdam: Elsevier B.V 出版日期： 2013-09-13 出處： Journal of Chromatography A, 2013-09, Vol.1307, p.34-40 版權： 2013 Elsevier B.V. 版權： 2014 INIST-CNRS 版權： Copyright © 2013 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.2013.07.074 識別號： PMID: 23932027 識別號： CODEN: JOCRAM
顯示於類別:	[化學學系] 期刊論文

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