GB 5009.169-2016 Translated English of Chinese Standard. GB5009.169-2016: National food safety standard -- Determination of taurine in foodshttps://www.chinesestandard.net, 29 avr. 2017 - 18 pages This standard specifies the method for the determination of taurine in food. This standard applies to the determination of taurine in infant formula, milk powder, soybean meal, soy milk, milk beverage, special purpose drink, flavor beverage, solid beverage and jelly. |
Table des matières
| 3 | |
Scope | 4 |
Instruments and equipment | 6 |
Expression of analysis results | 9 |
Principles | 10 |
Instruments and equipment | 11 |
Analytical procedures | 12 |
Expression of analysis results | 14 |
Precision | 15 |
Appendix A Chromatogram | 16 |
Expressions et termes fréquents
0.45 µm microporous 100 mL volumetric 2-mercaptoethanol 40 C warm accurate to 0.01 acetonitrile acid solution 3.2.1 ADD 20 mL amylase arithmetic mean CENTRIFUGE the sample chloride pre-column derivatization conical flask dansyl chloride pre-column dark for 24 Determination of taurine diode array detector filtrate for sample fluorescence detector g accurate high performance liquid Hydrochloric acid intermediate filtrate Liquid phase chromatogram mark and SHAKE metaphosphoric acid solution microporous membrane 4.7 mL of metaphosphoric mL of precipitant mL volumetric flask o-phthalaldehyde OPA oscillator for ultrasonic performance liquid chromatograph potassium ferrocyanide Potassium hydroxide pre-column derivatization method r/min reach to 100 room temperature Sample mass SHAKE it uniformly Sodium acetate sodium carbonate solution at 5000 Standard substance standard working solution supernatant and PREPARE supernatant is stable TAKE the intermediate TAKE the supernatant Trisodium citrate ultrasonic extraction ultrasonic oscillator volume reach vortex water to dilute water to dissolve WEIGH 5 g zinc acetate µm microporous membrane