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Article: Determination of ascorbic acid in soft drinks and fruit juices part 1. Background correction for direct ultraviolet spectrophotometry

TitleDetermination of ascorbic acid in soft drinks and fruit juices part 1. Background correction for direct ultraviolet spectrophotometry
Authors
KeywordsAscorbic Acid Determination
Background Correction
Fruit Juices
Soft Drinks
Uv Spectrophotometry
Issue Date1985
PublisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/analyst
Citation
The Analyst, 1985, v. 110 n. 2, p. 201-204 How to Cite?
AbstractFor the determination of ascorbic acid in soft drinks and fruit juices, spectrophotometry is the most commonly used instrumental method. Although UV spectrophotometry is a fast and simple method, matrix interference has been shown in this work to be a problem that can be solved by correcting the background absorption. Background correction methods such as thermal decomposition, catalytic conversion, UV light decomposition and alkaline treatment have therefore been investigated and evaluated. The alkaline treatment method was found to be the best for the concentrations normally encountered in commercial drinks. Hence, its working parameters have been optimised and their effects on the analysis are discussed.
Persistent Identifierhttp://hdl.handle.net/10722/167466
ISSN
2015 Impact Factor: 4.033
2015 SCImago Journal Rankings: 1.300
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorFung, YSen_US
dc.contributor.authorLuk, SFen_US
dc.date.accessioned2012-10-08T03:07:21Z-
dc.date.available2012-10-08T03:07:21Z-
dc.date.issued1985en_US
dc.identifier.citationThe Analyst, 1985, v. 110 n. 2, p. 201-204en_US
dc.identifier.issn0003-2654en_US
dc.identifier.urihttp://hdl.handle.net/10722/167466-
dc.description.abstractFor the determination of ascorbic acid in soft drinks and fruit juices, spectrophotometry is the most commonly used instrumental method. Although UV spectrophotometry is a fast and simple method, matrix interference has been shown in this work to be a problem that can be solved by correcting the background absorption. Background correction methods such as thermal decomposition, catalytic conversion, UV light decomposition and alkaline treatment have therefore been investigated and evaluated. The alkaline treatment method was found to be the best for the concentrations normally encountered in commercial drinks. Hence, its working parameters have been optimised and their effects on the analysis are discussed.en_US
dc.languageengen_US
dc.publisherRoyal Society of Chemistry. The Journal's web site is located at http://www.rsc.org/analysten_US
dc.relation.ispartofThe Analysten_US
dc.subjectAscorbic Acid Determinationen_US
dc.subjectBackground Correctionen_US
dc.subjectFruit Juicesen_US
dc.subjectSoft Drinksen_US
dc.subjectUv Spectrophotometryen_US
dc.titleDetermination of ascorbic acid in soft drinks and fruit juices part 1. Background correction for direct ultraviolet spectrophotometryen_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.doi10.1039/AN9851000201-
dc.identifier.pmid3985351-
dc.identifier.scopuseid_2-s2.0-0022016445en_US
dc.identifier.volume110en_US
dc.identifier.issue2en_US
dc.identifier.spage201en_US
dc.identifier.epage204en_US
dc.identifier.isiWOS:A1985ACC9800021-
dc.publisher.placeUnited Kingdomen_US
dc.identifier.scopusauthoridFung, YS=13309754700en_US
dc.identifier.scopusauthoridLuk, SF=7005840604en_US

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