Jump to main content
Jump to site search

Issue 12, 1987
Previous Article Next Article

Spectrophotometric determination of thiocyanate following complexation with mercury(II) and N-phenylbenzohydroxamic acid

Abstract

A simple solvent extraction and spectrophotometric method for the determination of trace amounts of thiocyanate is described. Thiocyanate is selectively separated from other ions by reaction with mercury(II). The excess of mercury(II) is determined using N-phenylbenzohydroxamic acid (PBHA) at pH 6.8 and the thiocyanate concentration calculated. Mercury(II) complexes rapidly with PBHA in ethanol and is further extracted into chloroform. Beer's law is obeyed for thiocyanate in the range 0–10 p.p.m. at 550 nm for a fixed amount, 20 p.p.m., of mercury(II). The method has been applied to the determination of thiocyanate in human blood serum, urine and some organoisothiocyanate samples.

Back to tab navigation

Article information


Analyst, 1987,112, 1767-1769
Article type
Paper

Spectrophotometric determination of thiocyanate following complexation with mercury(II) and N-phenylbenzohydroxamic acid

Y. K. Agrawal and P. N. Bhatt, Analyst, 1987, 112, 1767
DOI: 10.1039/AN9871201767

Social activity

Search articles by author

Spotlight

Advertisements