ＨＰＬＣによる，液体食品中のサッカリン，安息香酸，ソルビン酸及び６種のパラオキシ安息香酸エステル類の迅速一斉分析法

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  • A rapid and simultaneous determination of saccharin, benzoic acid, sorbic acid and six esters of p-hydroxybenzoic acid in liquid foods by HPLC.
  • HPLC ニ ヨル エキタイ ショクヒンチュウ ノ サッカリン アンソクコウサ

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A rapid and simultaneous determination method of saccharin, benzoic acid, sorbic acid and six esters of p-hydroxybenzoic acid in liquid foods by HPLC using isocratic elution system, was developed. Liquid food sample was loaded on SEP-PAK C18 cartridge in acidic condition, washed with water, eluted with methanol and filled up to 10ml with methanol as test solution. Saccharin, benzoic acid and sorbic acid (group A) in the test solution were simultaneously determined by HPLC using Zorbax C8 column and methanol-phosphate buffer (1+3) mixture as mobile phase. Six esters of p-hydroxybenzoic acid (group B) in the same test solution were simultaneously determined by HP LC using Zorbax ODS column and ethanol-phosphate buffer (2+3) mixture as mobile phase. The recoveries of the test compounds from samples fortified at 100ppm were more than 95.5%, and the detection limit of them in sample was 5ppm by the proposed method.

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