Rapid X-Ray Fluorescence Analysis of Intercalation Compounds for Molybdenum Contentстатья
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Дата последнего поиска статьи во внешних источниках: 3 февраля 2022 г.
Аннотация:Abstract—Expansion of the works on the synthesis and study of the structure of new intercalation compoundsbased on molybdenum disulfide (MD) with various inclusions of organic molecules in the layered structuresentails the necessity of developing methods for rapid analysis of those compounds for molybdenum content.We developed a rapid method of XRF analysis of such compounds using a bulk method in the range of 28–50% Mo content. Analytical signals were measured for the MoKα line on a VRA-30 spectrometer (Carl Zeiss,Jena, Germany; X-ray tube with Rh anode operated in the mode of 35 kV, 15 mA). The molybdenum contentis calculated using the derived coupling equation; the error of determination is ±2.5% Mo (abs.). In contrastto the traditional methods of external standard with dilution used in laboratory practice, the proposed methodprovides satisfactory accuracy and reduces the duration of analysis from ~100 to ~20 min, the sample materialbeing kept safe for further studies. Correctness of the method was confirmed for the batch of compounds bycomparison of the obtained results and the data of XRF analysis with the dilution procedure