Automated determination of sulfide by cool flame molecular emission spectrometry

A sensitive and selective cool flame emission spectrometric method for the determination of sulfide in environmental solution samples is described. The technique is based on passing the hydrogen sulfide liberated on acidification of samples with 3 M HCl into a cool, nitrogen-hydrogen diffusion flame...

Full description

Saved in:
Bibliographic Details
Published in:Microchemical journal 1992-02, Vol.45 (1), p.97-109
Main Authors: Arowolo, Toyin A., Cresser, Malcolm S.
Format: Article
Language:English
Subjects:
Analytical chemistry
Chemistry
Exact sciences and technology
Spectrometric and optical methods
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A sensitive and selective cool flame emission spectrometric method for the determination of sulfide in environmental solution samples is described. The technique is based on passing the hydrogen sulfide liberated on acidification of samples with 3 M HCl into a cool, nitrogen-hydrogen diffusion flame and the resulting S 2 molecular emission is measured at 384 nm. The method, which is automated, has a detection limit of 0.026 μg ml −1 for sulfide and relative standard deviations of 0.8–2.5% for repeated analyses. Under the optimized conditions, the proposed method is applicable over the concentration range 0.1–8.0 μg ml −1 of sulfide. Twenty samples can be analyzed in 1 h. The method has been applied to the determination of sulfide in waste water samples.
ISSN:0026-265X
1095-9149
DOI:10.1016/0026-265X(92)90077-G