Journal
TALANTA
Volume 80, Issue 5, Pages 1777-1781Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.talanta.2009.10.022
Keywords
Hydrogen sulfide; Sulfide; Vapor generation; ICP-OES; Chemical interference
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Funding
- Ministry of Education, Youth and Sports of the Czech Republic [MSM0021622412]
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Vapor generation-inductively coupled plasma-optical emission spectrometry was used for the determination of sulfide in water samples preserved by the addition of a zinc acetate and sodium hydroxide solution. Hydrogen sulfide and acid-volatile sulfides were transformed, by acidification, to a gaseous phase in a vapor generator and subsequently detected by inductively coupled plasma optical emission spectrometry. Compounds interfering with iodometric titration and spectrophotometric determination were examined as potential chemical interferents. The proposed method provides results comparable to iodometric titration in the tested concentration range 0.06-22.0 mg L-1. Limit of detection for the determination of hydrogen sulfide by this method is 003 mg L-1. (C) 2009 Elsevier B.V. All rights reserved.
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