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Article: Determination of phenols in soil by supercritical fluid extraction-capillary electrochromatography

TitleDetermination of phenols in soil by supercritical fluid extraction-capillary electrochromatography
Authors
KeywordsAlkylphenols
Electrochromatography
Phenols
Soil
Supercritical fluid extraction
Issue Date2001
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/chroma
Citation
Journal Of Chromatography A, 2001, v. 907 n. 1-2, p. 301-311 How to Cite?
AbstractA new analytical procedure is developed to couple supercritical fluid extraction with capillary electrochromatography (SFE-CEC) to extract and determine phenols in soil. Ten phenols consisting of phenol, methylphenols (p-cresol and o-cresol), dimethylphenols (3,5-xylenol, 3,4-xylenol and 2,6-xylenol), trimethylphenol, ethylphenols (p-ethylphenol and o-ethylphenol), and o-isopropylphenol are investigated. The use of supercritical CO2 with 10% methanol as the organic modifier was found to give satisfactory extraction of alkylphenols from soil at 1200 p.s.i. and 50°C for 45 min under a total extractant flow-rate of 0.2 ml/min (1 p.s.i.=6894.76 Pa). Baseline resolution was achieved for the 10 selected phenols under optimised CEC conditions at 20 kV in a mobile phase of acetonitrile-4 mM Tris, pH 7.0 (35:65) in a 45 cm (25 cm packed with 3 μm ODS)×75 μm I.D. fused-silica capillary column. Using SFE with a 10-fold preconcentration factor, all alkyl-substituted phenols in soil can be determined with detection limits ranging from 0.0032 to 0.014 mg/kg and working range from 0.019 to 2.72 mg/kg. The SFE-CEC procedure developed has been applied successfully to determine phenols extracted from real soil sample contaminated with medical disinfectant. It will provide a rapid method for the direct determination of phenol and alkyl-substituted phenol in soils, with capability for confirmation of unknown peaks. © 2001 Elsevier Science B.V.
Persistent Identifierhttp://hdl.handle.net/10722/70195
ISSN
2015 Impact Factor: 3.926
2015 SCImago Journal Rankings: 1.774
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFung, YSen_HK
dc.contributor.authorLong, YHen_HK
dc.date.accessioned2010-09-06T06:20:37Z-
dc.date.available2010-09-06T06:20:37Z-
dc.date.issued2001en_HK
dc.identifier.citationJournal Of Chromatography A, 2001, v. 907 n. 1-2, p. 301-311en_HK
dc.identifier.issn0021-9673en_HK
dc.identifier.urihttp://hdl.handle.net/10722/70195-
dc.description.abstractA new analytical procedure is developed to couple supercritical fluid extraction with capillary electrochromatography (SFE-CEC) to extract and determine phenols in soil. Ten phenols consisting of phenol, methylphenols (p-cresol and o-cresol), dimethylphenols (3,5-xylenol, 3,4-xylenol and 2,6-xylenol), trimethylphenol, ethylphenols (p-ethylphenol and o-ethylphenol), and o-isopropylphenol are investigated. The use of supercritical CO2 with 10% methanol as the organic modifier was found to give satisfactory extraction of alkylphenols from soil at 1200 p.s.i. and 50°C for 45 min under a total extractant flow-rate of 0.2 ml/min (1 p.s.i.=6894.76 Pa). Baseline resolution was achieved for the 10 selected phenols under optimised CEC conditions at 20 kV in a mobile phase of acetonitrile-4 mM Tris, pH 7.0 (35:65) in a 45 cm (25 cm packed with 3 μm ODS)×75 μm I.D. fused-silica capillary column. Using SFE with a 10-fold preconcentration factor, all alkyl-substituted phenols in soil can be determined with detection limits ranging from 0.0032 to 0.014 mg/kg and working range from 0.019 to 2.72 mg/kg. The SFE-CEC procedure developed has been applied successfully to determine phenols extracted from real soil sample contaminated with medical disinfectant. It will provide a rapid method for the direct determination of phenol and alkyl-substituted phenol in soils, with capability for confirmation of unknown peaks. © 2001 Elsevier Science B.V.en_HK
dc.languageengen_HK
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/chromaen_HK
dc.relation.ispartofJournal of Chromatography Aen_HK
dc.rightsJournal of Chromatography A. Copyright © Elsevier BV.en_HK
dc.subjectAlkylphenolsen_HK
dc.subjectElectrochromatographyen_HK
dc.subjectPhenolsen_HK
dc.subjectSoilen_HK
dc.subjectSupercritical fluid extractionen_HK
dc.titleDetermination of phenols in soil by supercritical fluid extraction-capillary electrochromatographyen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0021-9673&volume=907&spage=301&epage=311&date=2001&atitle=Determination+of+phenols+in+soil+by+supercritical+fluid+extraction-capillary+electrochromatographyen_HK
dc.identifier.emailFung, YS:ysfung@hku.hken_HK
dc.identifier.authorityFung, YS=rp00697en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/S0021-9673(00)01039-6en_HK
dc.identifier.pmid11217037-
dc.identifier.scopuseid_2-s2.0-0035847169en_HK
dc.identifier.hkuros62500en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0035847169&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume907en_HK
dc.identifier.issue1-2en_HK
dc.identifier.spage301en_HK
dc.identifier.epage311en_HK
dc.identifier.isiWOS:000166455500028-
dc.publisher.placeNetherlandsen_HK
dc.identifier.scopusauthoridFung, YS=13309754700en_HK
dc.identifier.scopusauthoridLong, YH=7203043014en_HK

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