A study on synthesis of novel chromogenic organic reagent 3,4-dihydroxy-5-methoxy benzaldehyde thiosemicarbazone and specrtrophotometric determination of Ruthenium (III) in presences of Triton X-100

Author(s): P.Madhusudhan, N.Devanna, C.Viswanatha, N.Radhakrishna Reddy4

The present research work 3,4-dihdroxy 5-methoxybenzaldehyde thiosemicarbazone (DHMBTSC) is proposed as a novel chromogenic organic reagent for the estimation of Ruthenium (III) by spectrophotometry. The novel chromogenic reagent 3,4-dihdroxy-5-methoxybenzaldehyde thiosemicarbazone (DHMBTSC) formyellowcoloured complexewithRuthenium (III). The colour complexe shows maximum absorption at max 425 nm. The beer’s law validity range 0.2021 to 2.3246 (µg/ml) and optimum concentration range is 0.4042 to 2.1224 (µg/ml). The molar absorptivity and sandells sensitivity of the complexwas found to be 2.72x104 L.mol-1. cm-1 and 0.00371 g/cm2 respectively. The Ruthenium (III) forms M:L (I:I) colour complexe withDHMBTSC and stability constant of the complex was found to be. 7.24 x106.

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