Article ID Journal Published Year Pages File Type
583415 Journal of Hazardous Materials 2008 6 Pages PDF
Abstract
A new, selective and sensitive on-site spectrophotometric method for the determination of antimony at trace level in water, soil and dust samples of Central India has been demonstrated. It is based on the color reaction of Sb(III) with I− ions in the presence of a cationic surfactant cetylpyridinium chloride (CPC) in acidic media, and subsequent extraction of the complex with N-phenylbenzimidoylthiourea (PBITU) into chloroform to give a yellow colored complex. The value of apparent molar absorptivity of the complex in the terms of Sb is (7.84) × 104 l mol−1 cm−1 at 440 nm. The detection limit of the method is 5 ng ml−1. In addition, the present method is free from interferences of all metal ions that are associated during the determination of antimony in environmental samples.
Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Health and Safety
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