Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/75535
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dc.titleAdsorptive Stripping Voltammetric Determination of Traces of Molybdenum in Natural Water in the Presence of α-Benzoinoxime
dc.contributor.authorGao, Z.
dc.contributor.authorSiow, K.S.
dc.date.accessioned2014-06-23T05:31:33Z
dc.date.available2014-06-23T05:31:33Z
dc.date.issued1996
dc.identifier.citationGao, Z.,Siow, K.S. (1996). Adsorptive Stripping Voltammetric Determination of Traces of Molybdenum in Natural Water in the Presence of α-Benzoinoxime. Mikrochimica Acta 124 (3-4) : 211-218. ScholarBank@NUS Repository.
dc.identifier.issn00263672
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/75535
dc.description.abstractThe electrochemical behavior of the molybdenum complex of α-benzoinoxime was investigated using cyclic voltammetry and linear scan voltammetry, after adsorptive accumulation of the complex onto a hanging mercury drop electrode (HMDE). The signal corresponds to the reduction of molybdenum in the complex adsorbed at the HMDE surface. Under optimal conditions, the adsorptive stripping voltammetric procedure gave an extremely low detection limit of 0.1 nM (9.6 ng/1) Mo(VI) following stirred accumulation for 5 min at 0.0 V (vs. Ag/AgC1). The reduction current-[Mo(VI)] relationships were linear up to 25 and 100 nM. Repetitive determinations of 10 nM solutions gave relative standard deviations of 2.2 and 3.5%, for 1 and 5-min accumulation periods, respectively. Most of the ions investigated did not interfere with the determination of molybdenum, except for tungsten. Excellent selectivity against copper was observed. The proposed procedure was applied to the direct determination of molybdenum in natural water.
dc.sourceScopus
dc.subjectα-benzoinoxime
dc.subjectAdsorptive stripping voltammetry
dc.subjectMolybdenum
dc.typeArticle
dc.contributor.departmentCHEMISTRY
dc.description.sourcetitleMikrochimica Acta
dc.description.volume124
dc.description.issue3-4
dc.description.page211-218
dc.description.codenMIACA
dc.identifier.isiutNOT_IN_WOS
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