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Information Journal Paper

Title

Ultra-trace Determination of Palladium(II) by Spectrophotometric Flow Injection Analysis

Pages

  11-20

Abstract

 In this work, a simple, selective and rapid flow injection method of analysis (FIA) is developed for ultra-trace determination of palladium. The method is based on the catalytic effect of palladium on the oxidation of Naphthol green B by periodate. Naphthol green B undergoes an oxidation reaction with metaperiodate in acidic medium to from a colorless product at a very slow rate. It was found that this reaction can be quickly done at the presence of trace amount of pd2+. The reaction was monitored spectrophotometrically by measuring the difference between absorbance of naphtholgreen B of solutions with and without pd2+ at the λ max = 721 nm. The reagents and manifold variables, which have influences on the sensitivity, were investigated and the optimum conditions were established. Under these conditions, the influences of some important species on the determination of pd2+ by flow system were examined and most of them did not show any interference effect on the flow injection determination. It is obvious that under the optimized conditions absorbance signal was linearly dependent on pd2+ concentrations in the ranges of 2. 0-90. 0 ng ml-1 with a detection limit of 0. 9 ng ml-1 (S/N = 3) and a sample rate of 35 ± 5 samples/h. The proposed method has been successfully applied for the analysis of ultra-trace amounts of pd2+ in human serum and water samples.

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    APA: Copy

    KEYVANFARD, MOHSEN, REZAEI, BEHZAD, & ALIZAD, KHADIJEH. (2017). Ultra-trace Determination of Palladium(II) by Spectrophotometric Flow Injection Analysis. ANALYTICAL AND BIOANALYTICAL CHEMISTRY RESEARCH, 4(1), 11-20. SID. https://sid.ir/paper/354290/en

    Vancouver: Copy

    KEYVANFARD MOHSEN, REZAEI BEHZAD, ALIZAD KHADIJEH. Ultra-trace Determination of Palladium(II) by Spectrophotometric Flow Injection Analysis. ANALYTICAL AND BIOANALYTICAL CHEMISTRY RESEARCH[Internet]. 2017;4(1):11-20. Available from: https://sid.ir/paper/354290/en

    IEEE: Copy

    MOHSEN KEYVANFARD, BEHZAD REZAEI, and KHADIJEH ALIZAD, “Ultra-trace Determination of Palladium(II) by Spectrophotometric Flow Injection Analysis,” ANALYTICAL AND BIOANALYTICAL CHEMISTRY RESEARCH, vol. 4, no. 1, pp. 11–20, 2017, [Online]. Available: https://sid.ir/paper/354290/en

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