Abstract: The presence of different equilibrated chemical species in aqueous solutions of polyoxometalates represents a challenge for their identification, requiring the use of both separation and detection techniques. The use of reversed-phase ion-pair high-performance liquid chromatography (HPLC) in gradient elution mode resulted in optimal separation conditions. The detection was accomplished by parallel hyphenation of the inductively coupled plasma atomic emission spectrometry (ICP-AES) and electrospray ionization mass spectrometry (ESI-MS), which combined the advantages of element and molecule specific detectors. This hyphenation resulted in an unambiguous identification of the products of the synthesis of mixed-addendum Keggin-type phosphovanadotungstates of [PVxW12-xO40](3+x)- (x = 1– 3) general formula without the isolation of the individual species.

Cite: Volchek V.V. , Sheven D.G. , Abramov P.A.
HPLC with parallel ESI-MS and ICP-AES detection as a tool for the speciation studies of phosphovanadotungstates
Microchemical Journal. 2024. V.207. 111985 :1-7. DOI: 10.1016/j.microc.2024.111985 WOS Scopus OpenAlex

Dates:

Published print:

Dec 1, 2024

Identifiers:

Web of science:	WOS:001342431400001
Scopus:	2-s2.0-85206651446
OpenAlex:	W4403574573

Citing: Пока нет цитирований

Altmetrics: