On-line pre-concentration for the measurement of cadmium in urine by flame atomic absorption spectrometry
- 1 January 1989
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Journal of Analytical Atomic Spectrometry
- Vol. 4 (3) , 261-263
- https://doi.org/10.1039/ja9890400261
Abstract
The sensitivity for the measurement of cadmium in urine by flame atomic absorption spectrometry was increased 27.7-fold by the use of an on-line alumina microcolumn and a slotted quartz tube. Cadmium in 2.5 ml of sample was trapped on to basic alumina and rapidly eluted with 8%V/V HNO3. The effects of sample pH and column size on performance were investigated. Results obtained with a series of urine specimens compared well with those obtained by electrothermal atomisation atomic absorption spectrometry.Keywords
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