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Vol. 29 No. 6 (2017): Vol 29 Issue 6

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Spectrophotometric Determination of Bi(III) from Alloys and Drugs Samples Using Pyridine-2-carboxaldehyde-2-hydroxybenzoylhydrazone

https://doi.org/10.14233/ajchem.2017.20489
Murli N. Bale
Inorganic Chemistry Division, The Institute of Science, Madam Cama Road, Mumbai-440 020, India
Arun D. Sawant
Inorganic Chemistry Division, The Institute of Science, Madam Cama Road, Mumbai-440 020, India
Hamid Shaikh
SABIC Polymer Research Center, Chemical Engineering Department, King Saud University, P. O. Box 800, Riyadh 11421, Saudi Arabia
Dipak J. Garole
Directorate of Geology & Mining, Government of Maharashtra, Nagpur-440 010, India

Corresponding Author(s) : Dipak J. Garole

drdipakgarole@rediffmail.com

Asian Journal of Chemistry, Vol. 29 No. 6 (2017): Vol 29 Issue 6

Abstract

A simple, rapid and selective spectrophotometric method was developed for the determination of Bi(III) with pyridine-2-carboxaldehyde 2-hydroxybenzoylhydrazone (PAHB) as a chelating reagent. The proposed method has been described on the basis of selective extraction of Bi(III) at pH range 2-3, showed yellow-green coloured complex having molar ratio 1:2. The equilibrium time is 1 min for extraction of Bi(III) from aqueous phase. The absorbance of coloured organic layer in chloroform is measured spectrophotometrically at 380 nm against reagent blank. The Beers law was obeyed in the concentration range 0.7-4.3 μg mL-1 and optimum concentration range was 0.9-4.0 ppm of Bi(III). Molar absorptivity and Sandells sensitivity of Bi(III)-pyridine-2-carboxaldehyde 2-hydroxybenzoylhydrazone complex in chloroform are 3.46 × 104 L mol-1 cm-1 and 6.0 ng respectively. The composition of extracted species was determined jobs continuous variation method, mole ratio and slope ratio method. The complex was stable for 6 days. The interference effect of cation and anion were also studied. The method is successfully applied for the determination of Bi(III) in binary, synthetic mixtures and real pharmaceutical samples. The accuracy and reliability of method was verified by AAS. This method is found to be rapid and reproducible.

Keywords

Bismuth Solvent extraction Pyridine-2-carboxaldehyde 2-hydroxybenzoylhydrazone Alloy sample analysis
Bale, M. N., Sawant, A. D., Shaikh, H., & Garole, D. J. (2017). Spectrophotometric Determination of Bi(III) from Alloys and Drugs Samples Using Pyridine-2-carboxaldehyde-2-hydroxybenzoylhydrazone. Asian Journal of Chemistry, 29(6), 1328–1332. https://doi.org/10.14233/ajchem.2017.20489
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