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Suggested Rapid Method for Nitrate With Rhenium and Syn‐Phenyl‐2‐Pyridyl Ketoxime
Author(s) -
Bloomfield Richard A.,
Guyon John C.,
Murmann R. Kent
Publication year - 1965
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1965.tb01481.x
Subject(s) - rhenium , perrhenate , nitrate , chemistry , inorganic chemistry , chloride , ligand (biochemistry) , ion , organic chemistry , biochemistry , receptor
This article discusses a method for the determination of nitrate that does not require extensive equipment, is free of the usual interferences, and requires no cumbersome heating or extraction steps. When syn‐phenyl‐2‐ pyridyl ketoxime and stannous chloride are added to an acidic solution containing the perrhenate ion, a color is formed from the complexation of the ligand with a reduced form of the rhenium. This procedure has been used as a method for the determination of rhenium. In this method it was found that the nitrate ion inhibited color formation. This interference has been investigated, and a quantitative spectrophotometric method for the nitrate ion has been developed.