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

January 1, 1969

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 Kα 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.


Publication Year 1969
Title The determination of nanogram amounts of Chromium in urine by x-ray fluorescence spectroscopy
DOI 10.1016/S0003-2670(00)89385-X
Authors K. Beyermann, H. J. Rose, R.P. Christian
Publication Type Article
Publication Subtype Journal Article
Series Title Analytica Chimica Acta
Index ID 70011529
Record Source USGS Publications Warehouse