Spectrophotometric Determination of Molybdenum‐Containing Compounds in Aqueous Glucose Solutions

Abstract

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 l 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.

In vitro speciation of molybdenum in human biological samples based on thiol functionalized mesoporous silica nanoparticles and hexyl-methylimidazolium tris-pentafluoroethyl-trifluorophosphate

“…So, the organic Mo(R-Mo) is important in human body and must be determined [10][11][12]. Many developed methods included, flame atomic absorption spectrometry (F-AAS) [13], the stripping voltammetry [14], the UV visible spectrophotometer [15][16][17] were used for determination Mo in different matrixes such as water and human biological samples. As difficulty matrix in human blood samples, we have to use the extraction techniques for preparation of human blood samples.…”