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dc.contributor.authorApak, R
dc.contributor.authorFilik, Hayati
dc.contributor.authorTutem, Esma
dc.date.accessioned2021-03-03T07:45:12Z
dc.date.available2021-03-03T07:45:12Z
dc.date.issued2004
dc.identifier.citationFilik H., Tutem E., Apak R., "Use of the molybdenum-thiocyanate-rhodamine 6G ternary complex for spectrophotometric molybdenum determination without extraction", ANALYTICA CHIMICA ACTA, cilt.505, sa.1, ss.77-82, 2004
dc.identifier.issn0003-2670
dc.identifier.otherav_13ac205e-d9cd-4e2e-9d70-5f845b915f99
dc.identifier.othervv_1032021
dc.identifier.urihttp://hdl.handle.net/20.500.12627/18653
dc.identifier.urihttps://doi.org/10.1016/s0003-2670(03)00624-x
dc.description.abstractA modified thiocyanate method without extraction by using rhodamine 6G as a secondary ligand was developed. Molybdenum in 1.0 x 10(-2) M HCl, after the addition of ascorbic acid, was heated for 10 min in a 90degreesC water bath for reduction. Suitable amounts of glycerine, Triton X-100, rhodamine 6G solutions and 2 + 1 (v/v) 9M H2SO4 + 3M KHSO4 were added in this order. This solution was allowed to cool to room temperature and the absorbance at 570 nm was measured against a reagent blank 45 min after the addition of thiocyanate solution and the second aliquot of Triton X-100 solution. The complex was stable for at least 4 h, the order of reagent addition was important, and thiocyanate should be in large excess. Beer's law was obeyed over the range 0.9 x 10(-6) to 1.1 x 10(-5) M Mo with the molar absorptivity being 1.1 x 10(5) 1 mol(-1) cm(-1). The R.S.D. for the determination of 0.7 mg Mol(-1) was 1.83 % (n = 8). Possible interferences of various cations and anions on molybdenum determination were studied. The proposed method was applied to the determination of molybdenum in a dental alloy, Wiron 99. (C) 2003 Elsevier Science B.V. All rights reserved.
dc.language.isoeng
dc.subjectTemel Bilimler (SCI)
dc.subjectTemel Bilimler
dc.subjectKİMYA, ANALİTİK
dc.subjectKimya
dc.subjectAnalitik Kimya
dc.titleUse of the molybdenum-thiocyanate-rhodamine 6G ternary complex for spectrophotometric molybdenum determination without extraction
dc.typeMakale
dc.relation.journalANALYTICA CHIMICA ACTA
dc.contributor.department, ,
dc.identifier.volume505
dc.identifier.issue1
dc.identifier.startpage77
dc.identifier.endpage82
dc.contributor.firstauthorID11184


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