GB/T 5009.82-2003 Translated English of Chinese Standard. (GBT 5009.82-2003, GB/T5009.82-2003, GBT5009.82-2003): Determination of Retinol and Tocopherol in Foods [Buy--download True-PDF in 3-second: https://play.google.com/books > Sign in > This BOOK > "3-dots" > Export > Save as "*.pdf"]This Standard specifies the methods for the determination of retinol and tocopherol in foods. This Standard applies to the determination of Vitamin A and Vitamin E in foods. |
Contents
| 3 | |
Scope | 4 |
Instruments and Equipment | 5 |
Analysis Steps | 6 |
Calculation Results | 9 |
Instruments | 10 |
Determination | 11 |
Calculation Results | 12 |
Common terms and phrases
acetic anhydride add 1 mL aldehyde anhydrous sodium sulfate antimony trichloride aqueous layer appears Ascorbic acid Calculation Results calibration chloroform solution chromatogram colorimetric tube content of vitamin de-aldehyded ethanol Determination of Vitamin diethyl ether distillate drop of acetic ether layer ether to wash Foods GB/T High Performance Liquid hydrogen chloride Immediately add Inspection method internal standard benzo internal standard method merge the washing microliter milliliter mL of chloroform mL of ether mL of water Performance Liquid Chromatography peroxide Phenolphthalein Potassium hydroxide solution Preparation of standard pyrene Reagents redistilling reference 1994 edition Results See Formula rotary evaporator saponification flask twice shake gently Silver ammonia solution silver nitrate silver nitrate solution small amount sodium hydroxide sodium hydroxide solution solution of vitamin spectrophotometer Stand for layering standard colorimetric column standard curve standard substance tocopherol purity 95 triangular flask vitamin A content vitamin E wash the saponification water to wash Wavelength weigh accurately