Issue 7, 1993

Study of X-ray fluorescence spectrometry and spark ablation inductively coupled plasma atomic emission spectrometry for chromium determination in ferrochromium from bulk metal samples

Abstract

A study of chromium determination in ferrochromium by X-ray fluorescence and spark ablation inductively coupled plasma atomic emission spectrometry was made. Bulk test samples were prepared by re-melting the ferroalloy diluted with iron in an induction furnace. Calibration samples were obtained from an industrial ferroalloy, using different FeCr+Fe dilution ratios, in order to cover the chromium concentration range that is probably present in these materials. A study is presented of the influence of the carbon contents on Cr Kα line intensities and on the amount of spark aerosol produced, as well methods of compensating for the effect. The total variance and the average instrumental variation were calculated from the values obtained for samples with the same chromium concentration and variable carbon contents. The criterion applied to test the agreement of the two methods showed that the difference between the results provided by both techniques can be explained by random errors. Accuracies were tested by analysing a series of ferrochromium reference materials.

Article information

Article type
Paper

J. Anal. At. Spectrom., 1993,8, 1023-1027

Study of X-ray fluorescence spectrometry and spark ablation inductively coupled plasma atomic emission spectrometry for chromium determination in ferrochromium from bulk metal samples

A. G. Coedo, T. Dorado, C. J. Rivero and I. G. Cobo, J. Anal. At. Spectrom., 1993, 8, 1023 DOI: 10.1039/JA9930801023

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements