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Spectrophotometric Determination of Molybdenum‐Containing Compounds in Aqueous Glucose Solutions
Author(s) -
Spasova Berta,
Kuesters Christof,
Stengel Bruno,
Kraut Manfred,
Brandner Juergen J.
Publication year - 2018
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201800038
Subject(s) - molar absorptivity , pyrazine , molybdenum , aqueous solution , chemistry , reproducibility , absorption (acoustics) , spectrophotometry , dicarboxylic acid , nuclear chemistry , inorganic chemistry , chromatography , organic chemistry , materials science , optics , physics , composite material
The spectrophotometric determination of molybdenum‐containing compounds in aqueous glucose solutions using pyrazine‐2,3‐dicarboxylic acid was investigated. Determination of the molybdenum complex with pyrazine‐2,3‐dicarboxylic acid was performed at λ max = 550 nm. The light absorption of the deeply violet complex follows Lambert‐Beer's law and can be measured with a molar absorptivity in the range of 4414–9020 L mol −1 cm −1 . The presented method is very sensitive and shows good reproducibility for the extinction values.