Flow injection analysis, with chemiluminescence detection, is used to determine ultratraces of copper (II) by means of the 1, 10-phenanthroline-hydrogen peroxide-sodium hydroxide system containing cationic surfactant micelle to increase the sensitivity. This permits the determination of copper (II) more selectively than any other chemiluminescent system with a detection limit of 0.3 pg (20-μl sample injection). Lead (II) (10−4 M), the strongest catalyst after copper (II), provides a signal 25% of that for copper (10−8 M).
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Yamada et al. (1984) studied this question.
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