GB 5009.28-2016: Translated English of Chinese Standard. GB5009.28-2016: National Food Safety Standard - Determination of Benzoic Acid, Sorbic Acid and Saccharin Sodium in Foods
https://www.chinesestandard.net, 2018 M06 24 - 15 pages
This Standard specifies the determination method for benzoic acid, sorbic acid AND sodium saccharin in foods. The first method of this Standard is applicable to the determination of benzoic acid, sorbic acid AND saccharin sodium in foods; the second method is applicable to the determination of benzoic acid and sorbic acid in soy sauce, fruit juice AND jam.
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Instruments and Apparatus
Expression of Analysis Results
Appendix A Liquid Chromatogram of Benzoic Acid Sorbic Acid and Saccharin Sodium
Appendix B Gas Chromatogram of Standard Solutions of 100mgL Benzoic Acid Sorbic Acid and Saccharin Sodium
1mg/L Benzoic Acid 2g accurate 50mL stoppered centrifuge 50mL volumetric flask 5min accurate to 0.001g Accurately weigh acid AND saccharin acid and sorbic add 2mL ammonium acetate solution calculated as saccharin Chromatographic column chromatographic purity concentration of benzoic constant volume country AND granted Determination of benzoic ethyl acetate ethyl ether Figure A.2 Flame Ionization Detector formic gas chromatography granted for standard Homogenizer hydrochloric acid liquid chromatography mass concentration methanol microfiltration milliliters mL mix it evenly mixed standard intermediate mixed standard series n-hexane peak area Potassium sorbate preservation period respectively and accurately saccharin sodium calculated series working solution set for standby Sodium benzoate Sodium chloride sodium in foods sodium sulfate solution of benzoic Solutions of 1mg/L sorbic acid standard curve standard intermediate solution Standard Solutions standard stock solution standard substance certificate standby application take about 2g unit is grams unit is milliliters vortex-mix water to dilute water to dissolve weigh and take