Determination of Sodium Cyclamate in Diet Coke by Ion Chromatography
The study reported the establishment of an ion chromatography method to determine sodium cyclamate in diet coke by ion chromatography using conductivity detector.The separation was achieved on a Thermo IonPac AG11-HC guard column and a Thermo IonPac AS11-HC analytical column with KOH as the gradient eluent and suppressed conductivity detector.Results showed that sodium cyclamate had good liner relations when the concentration was in the range of 0.112mg/L～112mg/L and the correlation coefficient was above 0.999.The detection limit was 0.05mg/L.The system relative deviation was less than 2%,and the recovery for diet coke was in the range of 98.22%～103.9%.The method is simple,rapid,sensitive,accurate and reproducible.It was suitable for determination of sodium cyclamate in diet coke.
ion chromatographyconductivitydiet cokesodium cyclamate
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