Trace analysis of cationic surfactants in water using hplc with conductometric detection
Mueller, Greg L.
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A simple and fast determination of trace amounts of commercially used cationic surfactants is described. After extraction from water cationic surfactants are separated by HPLC and detected by conductometry. The detection limit is 3 μg/l for distearyldimethylammonium chloride, 16 μg/l for ditallowimidazolinium methosulphate, and 6 μg/l for dodecylpyridinium chloride.
Nitschke, L., R. Mueller, G. Metzner, and L. Huber, "Trace Analysis of Cationic Surfactants in Water using HPLC with Conductometric Detection," Fresenius' Journal of Analytical Chemistry, 342:711-713 (1992).