US EPA

4374390 

Journal Article 

A New Sample Preparation Method Using Borate Fusion for X-ray Fluorescence Analysis of Vanadium, Chromium, Cobalt, Molybdenum, and Tungsten in High-speed Steel 

Nakayama, K; Wagatsuma, K 

2016 

1 

ISIJ International
ISSN: 0915-1559
EISSN: 1347-5460 

56 

12 

2330-2332 

10.2355/isijinternational.ISIJINT-2016-435 

WOS:000390733000030 

This paper suggests a rapid preparation for quantitative analysis of a type of high-alloyed steel in wavelength dispersive X-ray fluorescence analysis of the allying elements (vanadium, chromium, cobalt, molybdenum, and tungsten). The samples were decomposed with nitric acid and hydrofluoric acid, and then fused with an alkali flux of lithium tetraborate. The synthetic standards for the quantification were prepared by using metal standard solutions of analytes and iron as a matrix component. Analytical results based on the following methods were successfully obtained: a milligram based calibration with six synthetic standards by using conventional linear calibration curves, and a corrected fundamental parameter calculation with the same synthetic standards. The present method enabled rapid sample preparation and thus simplified an analytical procedure for high-speed steel compared to the conventional wet analysis including inductively coupled plasma atomic emission spectrometry. 

X-ray fluorescence spectrometry; synthetic standard specimen; metal standard solution; fused glass bead