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Determination of 1,3-dichloro-2-propanol and 3-chloro-1,2-propandiol in soy sauce by headspace derivatization solid-phase microextraction combined with gas chromatography–mass spectrometry

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Title: Determination of 1,3-dichloro-2-propanol and 3-chloro-1,2-propandiol in soy sauce by headspace derivatization solid-phase microextraction combined with gas chromatography–mass spectrometry
Authors: Lee, Maw-Rong1 mrlee@dragon.nchu.edu.tw, Chiu, Tzu-Chun1, Dou, Jianpeng1,2
Source: Analytica Chimica Acta. May2007, Vol. 591 Issue 2, p167-172. 6p.
Subjects: Chemical reactions, Chromatographic analysis, Chemical processes, Mass spectrometry
Abstract: Abstract: This study proposes a method for identifying 1,3-dichloro-2-propanol and 3-chloro-1,2-propandiol in aqueous matrices by using headspace on-fiber derivatization following solid-phase microextraction combined with gas chromatography–mass spectrometry. The optimized SPME experimental procedures for extracting 1,3-dichloro-2-propanol and 3-chloro-1,2-propandiol in aqueous solutions involved a 85μm polyacrylate-coated fiber at pH 6, a sodium chloride concentration of 0.36gmL−1, extraction at 50°C for 15min and desorption of analytes at 260°C for 3min. Headspace derivatization was conducted in a laboratory-made design with N-methyl-N-(trimethylsilyl)-trifluoroacetamide vapor following solid-phase microextraction by using 3μL N-methyl-N-(trimethylsilyl)-trifluoroacetamide at an oil bath temperature of 230°C for 40s. This method had good repeatability (R.S.D.s≤19%, n =8) and good linearity (r 2 ≥0.9972) for ultrapure water and soy sauce samples that were spiked with two analytes. Detection limits were obtained at the ngmL−1. The result demonstrated that headspace on-fiber derivatization following solid-phase microextraction was a simple, fast and accurate technique for identifying trace 1,3-dichloro-2-propanol and 3-chloro-1,2-propandiol in soy sauce. [Copyright &y& Elsevier]
Copyright of Analytica Chimica Acta is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
An: 24971101
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  Data: Determination of 1,3-dichloro-2-propanol and 3-chloro-1,2-propandiol in soy sauce by headspace derivatization solid-phase microextraction combined with gas chromatography–mass spectrometry
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  Data: <searchLink fieldCode="AR" term="%22Lee%2C+Maw-Rong%22">Lee, Maw-Rong</searchLink><relatesTo>1</relatesTo><i> mrlee@dragon.nchu.edu.tw</i><br /><searchLink fieldCode="AR" term="%22Chiu%2C+Tzu-Chun%22">Chiu, Tzu-Chun</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Dou%2C+Jianpeng%22">Dou, Jianpeng</searchLink><relatesTo>1,2</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Analytica+Chimica+Acta%22">Analytica Chimica Acta</searchLink>. May2007, Vol. 591 Issue 2, p167-172. 6p.
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  Data: Abstract: This study proposes a method for identifying 1,3-dichloro-2-propanol and 3-chloro-1,2-propandiol in aqueous matrices by using headspace on-fiber derivatization following solid-phase microextraction combined with gas chromatography–mass spectrometry. The optimized SPME experimental procedures for extracting 1,3-dichloro-2-propanol and 3-chloro-1,2-propandiol in aqueous solutions involved a 85μm polyacrylate-coated fiber at pH 6, a sodium chloride concentration of 0.36gmL−1, extraction at 50°C for 15min and desorption of analytes at 260°C for 3min. Headspace derivatization was conducted in a laboratory-made design with N-methyl-N-(trimethylsilyl)-trifluoroacetamide vapor following solid-phase microextraction by using 3μL N-methyl-N-(trimethylsilyl)-trifluoroacetamide at an oil bath temperature of 230°C for 40s. This method had good repeatability (R.S.D.s≤19%, n =8) and good linearity (r 2 ≥0.9972) for ultrapure water and soy sauce samples that were spiked with two analytes. Detection limits were obtained at the ngmL−1. The result demonstrated that headspace on-fiber derivatization following solid-phase microextraction was a simple, fast and accurate technique for identifying trace 1,3-dichloro-2-propanol and 3-chloro-1,2-propandiol in soy sauce. [Copyright &y& Elsevier]
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  Data: <i>Copyright of Analytica Chimica Acta is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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