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Catalytic Spectrophotometric Determination of Vanadium by Flow Injection Analysis
Author(s) -
Hwang J.M.,
Tsung J.C.,
Chen Y.M.
Publication year - 1985
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.198500063
Subject(s) - chemistry , vanadium , tiron , bromate , flow injection analysis , catalysis , masking agent , analytical chemistry (journal) , nuclear chemistry , inorganic chemistry , detection limit , chromatography , bromide , organic chemistry , enzyme , superoxide
Determination of trace amount of vanadium in water was studied by flow injection analysis. Catalytic spectrophotometric detection was performed with bromate oxidation of o ‐phenylenediamine and by addition of tiron as an activator and also as a masking agent. Vanadium can be determined with sample rate of ca. 60–70 samples/hour with in a range of 0.01 ppm to 0.5 ppm V and with r.s.d. 0.555% for 0.1 ppm V and 0.37% for 0.3 ppm V. Interference by Fe(III) can be reduced by using 0.3% NH 4 F as a carrier solution.