Abstract
Individual rare earth elements (REE) and their mixtures were determined by a FIA method based on the reaction with Xylenol Orange (XO) in the presence of cetylpyridinium bromide (CPB). Volumes of 30 μl of 2.5-25 μM REE solutions were injected into a carrier stream of 0.1M acetate butter of pH 4.5 or 5.5 that was 0.06 mM in XO and 0.6 mM in CPB. At 1.8 ml/min flow rate, a sampling frequency of up to 100 samples per hour was achieved. The detection limits were in the range of 0.1-0.4 μg/ml REE and relative standard deviation of the measurement was 0.88% rel. © 1994.
Original language | English |
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Pages (from-to) | 1251-1254 |
Journal | Talanta |
Volume | 41 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1 Jan 1994 |