GB 1903.44-2020 Translated English of Chinese Standard. (GB 1903.44-2020, GB1903.44-2020): National Food Safety Standard - Food Nutritional Fortification Substance - Hydroxocobalamin [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]https://www.chinesestandard.net, 20 mars 2021 - 17 sidor This Standard is applicable to the food nutritional fortification substance hydroxocobalamin, which is produced by the fermentation method of Ensifer adhaerens through purifying and drying. |
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3 Technical Requirements | 4 |
Appendix A Test Methods | 5 |
Appendix B Reference Infrared Spectrum and Chromatogram of Hydroxocobalamin | 15 |
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100mL volumetric flask absolute difference according to Formula Accurately take acetone standard add water anhydrous and solvent-free Appendix appropriate amount arithmetic mean B6 hydroxymethyl derivatives calculated according Chromatogram of Hydroxocobalamin concentration of hydroxocobalamin constant volume Cyanocobalamin diode array detector dissolving solution A.4.1.5 external standard method Figure B.1 g/mol Glacial acetic acid Hydrochloric acid hydrochloride standard product hydroxocobalamin hydrochloride standard Hydroxocobalamin Specimen injected main peak mass fraction mass of hydroxocobalamin methanol microporous membrane molar mass number of theoretical peak of hydroxocobalamin phenolphthalein pipette quantitative solution A.4.1.7 Reagents and solutions record the chromatogram Reference Chromatogram Reference chromatographic conditions reference solution A.5.2.4 related substances relative retention relative standard deviation results The mass Sensory Requirements Sodium acetate Sodium dihydrogen phosphate sodium hydroxide specimen dissolving solution specimen solution A.4.1.9 spectrum of hydroxocobalamin standard deviation RSD Standard Infrared Spectrum standard solution A.3.2.8 standard use solution system suitability solution system suitability test Table A.1 Test methods theoretical plates