XÁC ĐỊNH ĐỒNG THỜI ASPARTAME VÀ SACCHARIN TRONG MỘT SỐ LOẠI ĐỒ UỐNG BẰNG PHƯƠNG PHÁP SẮC KÝ LỎNG HIỆU NĂNG CAO

Tóm tắt

In this research, we reported some results of simultaneous identification of aspartame and saccharin by using High Performance Liquid Chromatography method (HPLC) and simultaneous identification the content of aspartame and saccharin in some beverages by using HPLC. It is shown that, detection limit
and quantitative limit by HPLC for aspartame was 0,2 ppm and 0,667 ppm; for Saccharin was 0,03 ppm and 0,1 ppm; the linear concentration of aspartame ranged from 0,5 to 100 ppm, with a coefficient R2 is 0,9997; while the linear concentration of saccharin was in a range of 0,1 to 200 ppm with the same coefficient as aspartame. The content of aspartame and saccharin in analytical samples fluctuated from 6,931 to 19,06 ppm and from 41,70 to 79,69ppm. The recovery of aspartame and saccharin in analytical samples fluctuated from 90,14 to 98,75% and from 90,45 to 99,15 %.