GB 5009.279-2016 Translated English of Chinese Standard. GB5009.279-2016: National Food Safety Standard - Determination of Xylitol, Sorbitol, Maltitol and Erythritol in Foodshttps://www.chinesestandard.net, 7. apr. 2019 - 15 sider This Standard specifies the method to use high performance liquid chromatography - differential refractive index detection and evaporative light scattering detection for the test of xylitol, sorbitol, maltitol and erythritol in chewing gum, biscuit, pastry, bread and beverage. This Standard applies to the determination of the content of xylitol, sorbitol, maltitol and erythritol in chewing gum, biscuit, pastry, bread and beverage. |
Indhold
Foreword | 5 |
Analysis Steps | 6 |
Description of the Analysis Result | 8 |
Precision | 9 |
Instruments and Apparatuses | 10 |
Analysis Steps | 11 |
Description of the Analysis Result | 13 |
Appendix A High Performance Liquid Chromatography Differential Refractive Index Detection Chromatogram of Sugar Alcohol Standard Solution | 14 |
Appendix B High Performance Liquid Chromatography Evaporative Light Scattering Detection Chromatogram of Sugar Alcohol Standard Solution | 15 |
Almindelige termer og sætninger
50 mL centrifuge 50 mL volumetric add 20 mL add 5 mL add water alcohol content lower amino column arithmetic mean centrifuge at 9 centrifuge at 9500 certificate Chewing gum closed container column length concentration of xylitol container to mix detection-limit diluted by acetonitrile fix-volume the supernatant fix-volume to 100 high performance liquid inner diameter Instrument conditions least 200 mL low erythritol content machine after dilution maltitol and erythritol mg/mL mL of sample mL of supernatant mL of trichloroacetic mL of water mL volumetric flask performance liquid chromatography precipitated and diluted r/min Refractive Index response value peak room temperature sample mass samples with sugar shake and neutralize sodium carbonate solution sorbitol standard curve standard substance certified standard working solution sugar alcohol content supernatant to 50 take 10 mL Take 8 mL Take at least temperature for 30 trichloroacetic acid solution Ultrasonic cleaning value peak area water to fix-volume weigh 2 g