Journal article
Extraction-Spectrophotometric Determination of Arsenic in Environmental Samples with Iodide and Amidines
Abstract
A simple and rapid method for the spectrophotometric determination of traces of total arsenic present in industrial waste waters is described. It is based on the reaction of As(III) with I− in 5 –6 M HCl, and extraction of the iodo-arsenite complex formed into chloroform with amidines. The molar absorptivity of AsI4 − with 11 different amidines is in the range (3.9 –7.9) × 103 lmol−1 cm−1 at λmax = 380 –395 nm; the simplest compound, …
Authors
Deb MK; Agarwal C; Patel KS; Mishra RK
Journal
International Journal of Environmental & Analytical Chemistry, Vol. 39, No. 4, pp. 417–419
Publisher
Taylor & Francis
Publication Date
August 1990
DOI
10.1080/03067319008030514
ISSN
0306-7319