Purge-assisted headspace solid-phase microextraction combined with gas chromatography–mass spectrometry for determination of chlorophenols in aqueous samples
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| Title: | Purge-assisted headspace solid-phase microextraction combined with gas chromatography–mass spectrometry for determination of chlorophenols in aqueous samples |
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| Authors: | Ho, Hsin-Pin1, Lee, Ren-Jye1, Lee, Maw-Rong mrlee@dragon.nchu.edu.tw |
| Source: | Journal of Chromatography A. Dec2008, Vol. 1213 Issue 2, p245-248. 4p. |
| Subjects: | Solid phase extraction, Gas chromatography, Mass spectrometry, Chlorophenols, Octyl alcohol, Leachate, Vapor pressure, Standard deviations |
| Abstract: | Abstract: A simple, economical and very effective method is demonstrated for simultaneous determination of 2,4-dichlorophenol, 2,4,6-trichlorophenol, 2,3,4,6-tetrachlorophenol and pentachlorophenol, in aqueous samples, by using purge-assisted headspace solid-phase microextraction (PA/HS-SPME) coupled to gas chromatography–mass spectrometry (GC–MS). In the new method, purging the sample enhances the removal of the trace chlorophenols without derivatization from the matrices to the headspace. Extraction parameters including extraction temperature, purge gas flow rate and extraction time were systematically investigated. Under optimal conditions, the relative standard deviations (RSDs) were 4–11% at 50pg/mL and 5–14% at 5pg/mL, respectively. The recoveries were in the range of 83–114%. Detection limits were determined at the fg level. These results indicate that PA/HS-SPME provides a significant contribution to highly efficient extraction of semi-volatile CPs, especially for pentachlorophenol, which has the smallest Henry''s constant and large octanol–water partitioning coefficient. In addition, the proposed method was successfully applied to the analysis of chlorophenols in landfill leachate. New perspectives are opened for headspace extraction of relatively low vapor pressure compounds in complex matrices. [Copyright &y& Elsevier] |
| Copyright of Journal of Chromatography A 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.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 35327966 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Purge-assisted headspace solid-phase microextraction combined with gas chromatography–mass spectrometry for determination of chlorophenols in aqueous samples – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Ho%2C+Hsin-Pin%22">Ho, Hsin-Pin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lee%2C+Ren-Jye%22">Lee, Ren-Jye</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Lee%2C+Maw-Rong%22">Lee, Maw-Rong</searchLink><i> mrlee@dragon.nchu.edu.tw</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Chromatography+A%22">Journal of Chromatography A</searchLink>. Dec2008, Vol. 1213 Issue 2, p245-248. 4p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Solid+phase+extraction%22">Solid phase extraction</searchLink><br /><searchLink fieldCode="DE" term="%22Gas+chromatography%22">Gas chromatography</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+spectrometry%22">Mass spectrometry</searchLink><br /><searchLink fieldCode="DE" term="%22Chlorophenols%22">Chlorophenols</searchLink><br /><searchLink fieldCode="DE" term="%22Octyl+alcohol%22">Octyl alcohol</searchLink><br /><searchLink fieldCode="DE" term="%22Leachate%22">Leachate</searchLink><br /><searchLink fieldCode="DE" term="%22Vapor+pressure%22">Vapor pressure</searchLink><br /><searchLink fieldCode="DE" term="%22Standard+deviations%22">Standard deviations</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: A simple, economical and very effective method is demonstrated for simultaneous determination of 2,4-dichlorophenol, 2,4,6-trichlorophenol, 2,3,4,6-tetrachlorophenol and pentachlorophenol, in aqueous samples, by using purge-assisted headspace solid-phase microextraction (PA/HS-SPME) coupled to gas chromatography–mass spectrometry (GC–MS). In the new method, purging the sample enhances the removal of the trace chlorophenols without derivatization from the matrices to the headspace. Extraction parameters including extraction temperature, purge gas flow rate and extraction time were systematically investigated. Under optimal conditions, the relative standard deviations (RSDs) were 4–11% at 50pg/mL and 5–14% at 5pg/mL, respectively. The recoveries were in the range of 83–114%. Detection limits were determined at the fg level. These results indicate that PA/HS-SPME provides a significant contribution to highly efficient extraction of semi-volatile CPs, especially for pentachlorophenol, which has the smallest Henry''s constant and large octanol–water partitioning coefficient. In addition, the proposed method was successfully applied to the analysis of chlorophenols in landfill leachate. New perspectives are opened for headspace extraction of relatively low vapor pressure compounds in complex matrices. [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Chromatography A 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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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.chroma.2008.10.056 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 4 StartPage: 245 Subjects: – SubjectFull: Solid phase extraction Type: general – SubjectFull: Gas chromatography Type: general – SubjectFull: Mass spectrometry Type: general – SubjectFull: Chlorophenols Type: general – SubjectFull: Octyl alcohol Type: general – SubjectFull: Leachate Type: general – SubjectFull: Vapor pressure Type: general – SubjectFull: Standard deviations Type: general Titles: – TitleFull: Purge-assisted headspace solid-phase microextraction combined with gas chromatography–mass spectrometry for determination of chlorophenols in aqueous samples Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Ho, Hsin-Pin – PersonEntity: Name: NameFull: Lee, Ren-Jye – PersonEntity: Name: NameFull: Lee, Maw-Rong IsPartOfRelationships: – BibEntity: Dates: – D: 12 M: 12 Text: Dec2008 Type: published Y: 2008 Identifiers: – Type: issn-print Value: 00219673 Numbering: – Type: volume Value: 1213 – Type: issue Value: 2 Titles: – TitleFull: Journal of Chromatography A Type: main |
| ResultId | 1 |
