Abstract: 2-hydroxy 3, 5-dimethoxy benzaldehyde thiosemicarbazone (HDMBTSC) used as a novel chromogenic organic reagent for the determination of Molybdenum (VI) with spectrophotometry. The novel chromogenic reagent 2-hydroxy 3,5-dimethoxy benzaldehyde thiosemicarbazone (HDMBTSC) form green coloured complexe with Molybdenum(VI). The colour complexe shows maximum absorption at lmax 406 nm. The beer’'s law validity range is 0.3838 to 2.399 (µg/ml) and optimum concentration range is 0.5757 to 2.0151 (µg/ml).The molar absorptivity and sandell"s sensitivity 2.93 x104 L.mol-1.cm-1 and 0.00326 mg/cm2 respectively. The Molybdenum(VI) forms M:L(I:I) colour complexe with HDMBTSC and stability constant of the complex was found to be 2.17x106. This developed method was applied for the determination of Molybdenum(VI) in pharmaceutical samples with good results as compared with certified refrence results.
Keywords: Novel chromogenic organic reagent, derivative spectrophotometry, Mo (VI) and pharmaceutical samples.
Title: A sensitive and selective chromogenic reagent using 2-hydroxy 3, 5-dimethoxy benzaldehyde thiosemicarbazone (HDMBTSC) for direct and derivative spectrophotometric determination of Molybdenum (VI)
Author: M.Hymavathi, N.Devanna, C.Viswanatha
International Journal of Mathematics and Physical Sciences Research
ISSN 2348-5736 (Online)
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