Determination of silver in soils, sediments, and rocks by organic-chelate extraction and atomic absorption spectrophotometry

Analytica Chimica Acta
By: , and 

Links

Abstract

A useful method for the determination of silver in soil, sediment, and rock samples in geochemical exploration has been developed. The sample is digested with concentrated nitric acid, and the silver extracted with triisooctyl thiophosphate (TOTP) in methyl isobutyl ketone (MIBK) after dilution of the acid digest to approximately 6 M. The extraction of silver into the organic extractant is quantitative and not affected by the nitric acid concentration from 4 M to 8 M, or by different volumes of TOTP-MIBK. The extracted silver is stable and remains in the organic phase up to several days. The silver concentration is determined by atomic absorption spectrophotometry.


Publication type Article
Publication Subtype Journal Article
Title Determination of silver in soils, sediments, and rocks by organic-chelate extraction and atomic absorption spectrophotometry
Series title Analytica Chimica Acta
DOI 10.1016/S0003-2670(01)81856-0
Volume 54
Issue 1
Year Published 1971
Language English
Publisher Elsevier
Description 5 p.
First page 77
Last page 81
Google Analytics Metrics Metrics page
Additional publication details