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The determination of nanogram amounts of Chromium in urine by x-ray fluorescence spectroscopy

Analytica Chimica Acta

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Abstract

Nanogram amounts of chromium can be extracted as oxinate into chloform. By treatment of the chloroform layer 3 M hydrochloric acid, oxinates of other elements and excess of reagent are removed, leaving a chloroform solution of the chromium chelate only. This solution is concentrated and transferred to the top of a small brass rod acting as sample holder. The intensity of the X-ray fluorescence of the Cr K?? line is measured with curved crystal optics. Chromium amounts greater than 5 ng can be detected. The application of the procedure to the analysis of the chromium content of urine is demonstrated. ?? 1969.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
The determination of nanogram amounts of Chromium in urine by x-ray fluorescence spectroscopy
Series title:
Analytica Chimica Acta
Volume
45
Issue:
1
Year Published:
1969
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Analytica Chimica Acta
First page:
51
Last page:
55