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Article: Determination of sulphate in water by flow-injection analysis with electrode-separated piezoelectric quartz crystal sensor

TitleDetermination of sulphate in water by flow-injection analysis with electrode-separated piezoelectric quartz crystal sensor
Authors
KeywordsElectrode-Separated Piezoelectric Quartz Crystal
Flow-Injection Analysis
Sulphate Analysis
Issue Date2008
PublisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/snb
Citation
Sensors And Actuators, B: Chemical, 2008, v. 130 n. 1, p. 551-560 How to Cite?
AbstractA new flow-injection analysis (FIA) system with detection by an electrode-separated piezoelectric quartz crystal (ESPQC) was developed for sulphate determination in water. The method was based on the decrease in conductivity upon precipitation of barium sulphate due to the mixing between reagent and sample with change indicated by the frequency shift in the ESPQC sensor. The best performance was achieved using a three-channel FI system consisted of a carrier stream of water, a buffer stream containing 0.05% KCl, 10 mM acetic acid and l mM sodium acetate, and a reagent stream of 0.1% BaCl 2. Under the optimized conditions, the linear range for sulphate determination was 0.5-50 ppm with a correlation coefficient of 0.9991, detection limit 0.3 ppm (S/N = 2) and sample throughput 50 samples/h. The effect of co-existing cations and anions were investigated and found not to cause interference for most samples except those with very high salt content. The reliability of the method was established by parallel determination using standard turbidimetric method for sulphate in drinking and pond water samples with results within statistical variation. The method developed was shown to provide a simple, sensitive, rapid and reproducible FIA detection method for ionic compounds in the liquid medium. © 2007 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/168282
ISSN
2015 Impact Factor: 4.758
2015 SCImago Journal Rankings: 1.305
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorFung, YSen_US
dc.contributor.authorWong, CCWen_US
dc.contributor.authorChoy, JTSen_US
dc.contributor.authorSze, KLen_US
dc.date.accessioned2012-10-08T03:17:00Z-
dc.date.available2012-10-08T03:17:00Z-
dc.date.issued2008en_US
dc.identifier.citationSensors And Actuators, B: Chemical, 2008, v. 130 n. 1, p. 551-560en_US
dc.identifier.issn0925-4005en_US
dc.identifier.urihttp://hdl.handle.net/10722/168282-
dc.description.abstractA new flow-injection analysis (FIA) system with detection by an electrode-separated piezoelectric quartz crystal (ESPQC) was developed for sulphate determination in water. The method was based on the decrease in conductivity upon precipitation of barium sulphate due to the mixing between reagent and sample with change indicated by the frequency shift in the ESPQC sensor. The best performance was achieved using a three-channel FI system consisted of a carrier stream of water, a buffer stream containing 0.05% KCl, 10 mM acetic acid and l mM sodium acetate, and a reagent stream of 0.1% BaCl 2. Under the optimized conditions, the linear range for sulphate determination was 0.5-50 ppm with a correlation coefficient of 0.9991, detection limit 0.3 ppm (S/N = 2) and sample throughput 50 samples/h. The effect of co-existing cations and anions were investigated and found not to cause interference for most samples except those with very high salt content. The reliability of the method was established by parallel determination using standard turbidimetric method for sulphate in drinking and pond water samples with results within statistical variation. The method developed was shown to provide a simple, sensitive, rapid and reproducible FIA detection method for ionic compounds in the liquid medium. © 2007 Elsevier B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier SA. The Journal's web site is located at http://www.elsevier.com/locate/snben_US
dc.relation.ispartofSensors and Actuators, B: Chemicalen_US
dc.subjectElectrode-Separated Piezoelectric Quartz Crystalen_US
dc.subjectFlow-Injection Analysisen_US
dc.subjectSulphate Analysisen_US
dc.titleDetermination of sulphate in water by flow-injection analysis with electrode-separated piezoelectric quartz crystal sensoren_US
dc.typeArticleen_US
dc.identifier.emailFung, YS:ysfung@hku.hken_US
dc.identifier.authorityFung, YS=rp00697en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.snb.2007.09.070en_US
dc.identifier.scopuseid_2-s2.0-40749128066en_US
dc.identifier.hkuros142454-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-40749128066&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume130en_US
dc.identifier.issue1en_US
dc.identifier.spage551en_US
dc.identifier.epage560en_US
dc.identifier.isiWOS:000254681900082-
dc.publisher.placeSwitzerlanden_US
dc.identifier.scopusauthoridFung, YS=13309754700en_US
dc.identifier.scopusauthoridWong, CCW=55334074900en_US
dc.identifier.scopusauthoridChoy, JTS=23975783800en_US
dc.identifier.scopusauthoridSze, KL=23019714100en_US

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