Determination of 5 Kinds Additives in Complex Food by Solid Phase Extraction Combined with Liquid Chromatography
This article adopts the pre-treatment method of ProElut FA solid-phase extraction to establish a liquid chromatography detection method for simultaneous determination of acesulfame,saccharin sodium,benzoic acid,sorbic acid,and dehydroacetic acid in complex food matrices.The samples were extracted using water and phosphate buffer,purified using a ProElut FA solid-phase extraction column,and determined using a UV detector.The results showed that the five additives had good linearity in the range of 0.25～50.00 mg·L-1(correlation coefficient≥0.999 5).The limits of quantitation were 0.401～0.481 mg·kg-1,and the recoveries were 72.6%～109.0%.This method can effectively reduce the interference of impurities,improve the accuracy of quantitative detection,and reduce the loss of chromatographic column.
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