期刊
MICROCHIMICA ACTA
卷 172, 期 1-2, 页码 75-82出版社
SPRINGER WIEN
DOI: 10.1007/s00604-010-0406-1
关键词
Ionic liquid-based dispersive liquid-liquid microextraction; Cobalt, Saline sample; Flame atomic absorption spectrometry; Microsample injection
资金
- Research Council of University of Tehran
A robust ionic liquid-based method for dispersive liquid-liquid microextraction was developed for the determination of cobalt in saline samples. Its robustness was increased by introducing a common ion of the IL into the sample solution. The concentration of cobalt in the settled phase of the ionic liquid was determined by the FAAS using a homemade microsample injection valve. Under the optimized conditions, the calibration graph was linear in the concentration range from 0.4 to 120 mu g L-1 with the detection limit of 0.1 mu g L-1. Accuracy was checked against the ISO standard method. The method was successfully applied to the determination of cobalt in water and saline samples.
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