A Simple Extraction Spectrophotometric Method for the Determination of Arsenic in Water and Environmental Samples
| Main Authors: | LATA CHERIAN, J. RAJU, V. K. GUPTA |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1990
|
| Subjects: | |
| Online Access: |
https://zenodo.org/record/6202352 |
Daftar Isi:
- Department of Chemistry, Ravishankar University, Raipur-492 010 Manuscript received 27 April 1989, revised 22 January 1990, accepted 28 February 1990 A new reducing agent succinyldihydroxamic acid has been proposed for the extractive spectrophotometric determination of arsenic. The method is based on the reduction or yellow molybdoarsenic heteropoly acid with succinyldihydroxamic acid into molybdoarsenic blue. The blue coloured dye shows an absorption maxima at 780 nm in n-butanol. Beer's law is obeyed in the range or 0.02-0.14 ppm or arsenic. The method is free from several common interfering co-pollutants including phosphates. Various analytical parameters for colour development have been evaluated. The method has been successfully applied for the determination of arsenic in polluted water and environmental samples.