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Simultaneous determination of molybdenum(VI) and tungsten(VI) and its application in elemental analysis of polyoxometalates

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LUBAL Přemysl KOPŘIVOVÁ Hana ŠEDO Ondrej HAVEL Josef LIS Stefan BUT Slawomir

Year of publication 2006
Type Article in Periodical
Magazine / Source Talanta
MU Faculty or unit

Faculty of Science

Field Analytic chemistry
Keywords Polyxometalates; simultaneous spectrophotometric determination; molybdenum(VI); tungsten(VI); ANN; MALDI-TOF MS.
Description Spectrophotometric determination of molybdenum(VI) and tungsten(VI) with application of Artificial Neural Networks is proposed and it was applied for elemental analysis of solid polyoxometalates. Better results in comparison with previously those achieved by previous published method were demonstrated. MALDI-TOF Mass Spectrometry was tested for possible determination of molecular weight of polyoxometalates utilizing different matrices. Phenomena observed during desorption-ionisation processes are discussed. LDI-TOF MS was found to be suitable for the determination of Mo:W ratio in polyoxometalates as a rapid screening method to follow synthetic procedure.
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