Simultaneous Determination of 51 Odorous Substances in Water by Headspace-Solid Phase Microextraction-Gas Chromatography/Triple Quadrupole Mass Spectrometry

A method of headspace-solid-phase microextraction-gas chromatography/triple quadrupole mass spectrometry was established for simultaneous determination of 10 types of 51 odorous substances in water. The effects of extraction head, extraction temperature, extraction time, salt content, desorption tim...

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Main Authors: LIU Jian-zhuo1, CHEN Qiu-ling1, WU Yue-jun2, ZHANG Ming-shan1, HE Shu-hai1
Format: Article
Language:English
Published: Editorial Board of Journal of Chinese Mass Spectrometry Society 2023-07-01
Series:Zhipu Xuebao
Subjects:
Online Access:http://www.jcmss.com.cn/CN/article/openArticlePDF.jsp?attachType=PDF&id=3172
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author LIU Jian-zhuo1
CHEN Qiu-ling1
WU Yue-jun2
ZHANG Ming-shan1
HE Shu-hai1
author_facet LIU Jian-zhuo1
CHEN Qiu-ling1
WU Yue-jun2
ZHANG Ming-shan1
HE Shu-hai1
author_sort LIU Jian-zhuo1
collection DOAJ
description A method of headspace-solid-phase microextraction-gas chromatography/triple quadrupole mass spectrometry was established for simultaneous determination of 10 types of 51 odorous substances in water. The effects of extraction head, extraction temperature, extraction time, salt content, desorption time and split ratio on detection results were investigated with optimized gas chromatography-mass spectrometry parameters using the multiple reaction monitoring (MRM) mode for triple quadrupole mass spectrometry. The results showed that the optimized conditions were polydimethylsiloxane/divinylbenzene as extraction head, 55 ℃ as extraction temperature, 20 min as extraction time, 300 g/L NaCl as salt content, desorption time of 0.5 min and the split ratio of 10∶1. The detection limits of 51 odorous substances ranged from 0.4 to 183 ng/L, and the linear correlation coefficients were greater than 0.995. The detection limits of indicator substances, such as geosmin, 2-methylisothiol, anisole, dimethyl disulfide, and dimethyl trisulfide were 0.4, 0.9, 1.9, 3.5, 1.7 ng/L, respectively, which met the limit requirement of “Standard for Drinking Water Quality (GB 5749—2022)” of China. The spiked recoveries of the low, medium and high concentration levels were 76.2%-118%, 78.9%-119% and 82.0%-119%, and the relative standard deviations were 2.9%-19.4%, 1.8%-13.4% and 0.9%-13.2%, respectively. This method was used to detect the odorous substances in 29 surface waters, in which 12 odorous substances such as methyl mercaptan, dimethyl sulfide, and DL-sec-butyl acetate were detected with the concentration range of 2.2~1 651 ng/L. There were no apparent interferences in the MRM channels for the detected odorous substances. This method has the characteristics of simple pretreatment, good reproducibility and high accuracy, which is suitable for simultaneous and rapid screening of various types of odorous substances in water bodies.
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spelling doaj.art-83ef5582c7c2409091877a041032ac362023-09-04T06:48:18ZengEditorial Board of Journal of Chinese Mass Spectrometry SocietyZhipu Xuebao1004-29972023-07-0144457658810.7538/zpxb.2022.0143Simultaneous Determination of 51 Odorous Substances in Water by Headspace-Solid Phase Microextraction-Gas Chromatography/Triple Quadrupole Mass SpectrometryLIU Jian-zhuo10CHEN Qiu-ling11WU Yue-jun22ZHANG Ming-shan13HE Shu-hai141. Hainan Ecological Environmental Monitoring Centre1. Hainan Ecological Environmental Monitoring Centre2. College of Ecology and Environment, Hainan University1. Hainan Ecological Environmental Monitoring Centre1. Hainan Ecological Environmental Monitoring CentreA method of headspace-solid-phase microextraction-gas chromatography/triple quadrupole mass spectrometry was established for simultaneous determination of 10 types of 51 odorous substances in water. The effects of extraction head, extraction temperature, extraction time, salt content, desorption time and split ratio on detection results were investigated with optimized gas chromatography-mass spectrometry parameters using the multiple reaction monitoring (MRM) mode for triple quadrupole mass spectrometry. The results showed that the optimized conditions were polydimethylsiloxane/divinylbenzene as extraction head, 55 ℃ as extraction temperature, 20 min as extraction time, 300 g/L NaCl as salt content, desorption time of 0.5 min and the split ratio of 10∶1. The detection limits of 51 odorous substances ranged from 0.4 to 183 ng/L, and the linear correlation coefficients were greater than 0.995. The detection limits of indicator substances, such as geosmin, 2-methylisothiol, anisole, dimethyl disulfide, and dimethyl trisulfide were 0.4, 0.9, 1.9, 3.5, 1.7 ng/L, respectively, which met the limit requirement of “Standard for Drinking Water Quality (GB 5749—2022)” of China. The spiked recoveries of the low, medium and high concentration levels were 76.2%-118%, 78.9%-119% and 82.0%-119%, and the relative standard deviations were 2.9%-19.4%, 1.8%-13.4% and 0.9%-13.2%, respectively. This method was used to detect the odorous substances in 29 surface waters, in which 12 odorous substances such as methyl mercaptan, dimethyl sulfide, and DL-sec-butyl acetate were detected with the concentration range of 2.2~1 651 ng/L. There were no apparent interferences in the MRM channels for the detected odorous substances. This method has the characteristics of simple pretreatment, good reproducibility and high accuracy, which is suitable for simultaneous and rapid screening of various types of odorous substances in water bodies.http://www.jcmss.com.cn/CN/article/openArticlePDF.jsp?attachType=PDF&id=3172solid phase microextractiongas chromatography-triple quadrupole mass spectrometryodorous substanceswater
spellingShingle LIU Jian-zhuo1
CHEN Qiu-ling1
WU Yue-jun2
ZHANG Ming-shan1
HE Shu-hai1
Simultaneous Determination of 51 Odorous Substances in Water by Headspace-Solid Phase Microextraction-Gas Chromatography/Triple Quadrupole Mass Spectrometry
Zhipu Xuebao
solid phase microextraction
gas chromatography-triple quadrupole mass spectrometry
odorous substances
water
title Simultaneous Determination of 51 Odorous Substances in Water by Headspace-Solid Phase Microextraction-Gas Chromatography/Triple Quadrupole Mass Spectrometry
title_full Simultaneous Determination of 51 Odorous Substances in Water by Headspace-Solid Phase Microextraction-Gas Chromatography/Triple Quadrupole Mass Spectrometry
title_fullStr Simultaneous Determination of 51 Odorous Substances in Water by Headspace-Solid Phase Microextraction-Gas Chromatography/Triple Quadrupole Mass Spectrometry
title_full_unstemmed Simultaneous Determination of 51 Odorous Substances in Water by Headspace-Solid Phase Microextraction-Gas Chromatography/Triple Quadrupole Mass Spectrometry
title_short Simultaneous Determination of 51 Odorous Substances in Water by Headspace-Solid Phase Microextraction-Gas Chromatography/Triple Quadrupole Mass Spectrometry
title_sort simultaneous determination of 51 odorous substances in water by headspace solid phase microextraction gas chromatography triple quadrupole mass spectrometry
topic solid phase microextraction
gas chromatography-triple quadrupole mass spectrometry
odorous substances
water
url http://www.jcmss.com.cn/CN/article/openArticlePDF.jsp?attachType=PDF&id=3172
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