Indole as A Chromogenic Reagent for Traces of Nitrate in Aqueous Solution

N. A. Fakhri; S. A. Rahim; W. A. Bashir

doi:10.1080/03067318308078355

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Indole as A Chromogenic Reagent for Traces of Nitrate in Aqueous Solution

Journal article

Peer reviewed

Indole as A Chromogenic Reagent for Traces of Nitrate in Aqueous Solution

N. A. Fakhri, S. A. Rahim and W. A. Bashir

International journal of environmental analytical chemistry, Vol.16(2), pp.131-138

11/1983

DOI: https://doi.org/10.1080/03067318308078355

Abstract

aqueous solution

indole reagent

Nitrate determination

spectrophotometry

A sensitive and selective spectrophotometric method for the determination of nitrate in aqueous solution is worked out. In strongly acidic medium, nitrate is reduced to nitrite by chloride ions. The nitrite produced is allowed to react with indole to form a water-soluble and stable compound with an intense absorption at 395 nm and adheres to Beer's law over 0.4-2 ppm of nitrate with a molar absorptivity of 16.15 ± 10 3 mol −1 cm −1 .

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Title: Indole as A Chromogenic Reagent for Traces of Nitrate in Aqueous Solution
Creators - without role: N. A. Fakhri - University of Mosul
S. A. Rahim - University of Mosul
W. A. Bashir - University of Mosul
Publication Details: International journal of environmental analytical chemistry, Vol.16(2), pp.131-138
Publisher: Taylor & Francis Group
Identifiers: 9917539508331
Academic Unit: Jazan University
Language: English
Resource Type: Journal article