A micro-separation and determination method for nonionic, cationic and anionic surfactants in the photographic emulsion was described.
Nonionic surfactant and anionic-cationic surfactant complex in the photographic emulsion was extracted with good yield using ethylalcohol but anionic surfactant was not good. When pH of the photographic emulsion raises to 12-13, yield of the anion surfactant increases remarkably.
An extracted surfactants mixture was separated to cationic, anionic and nonionic surfactant using sephadex SE-[SO
3H
+]-DEAE-[OH
-] columns.
Sephadex columns shows good sorption and desorption behavior for surfactants than other ionexchanger adsorption columns as for resin and cellulosic.
Sephadex SE column caught the cationic surfactant and DEAE column also caught the anionic, but the nonionic substances passed through in-to effluent.
The isolated ionic surfactants were determined by photometrically. The nonionic surfactants were separated by paperchromatography and identification methods for saponin, alkylene oxide condensate derivatives, carbwax and PEG were also investigated.
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