GB 5009.25-2016 Translated English of Chinese Standard. GB 5009.25-2016: National Food Safety Standard - Determination of Sterigmatocystin in FoodThis Standard specifies the methods for the determination of sterigmatocystin: liquid chromatography - tandem mass spectrometry and high-performance liquid chromatography. This Standard is applicable to the determination of sterigmatocystin in rice, corn, wheat, soy and peanut. |
Contents
Foreword | 4 |
Instruments and Equipment | 6 |
Expression of Analytical Result | 9 |
Precision | 10 |
Instruments and Equipment | 12 |
Expression of Analytical Result | 14 |
Thinlayer Chromatography | 15 |
Instruments and Equipment | 16 |
Appendix A Mass Spectrometry Conditions and Ion Source Control Conditions | 20 |
Appendix B Liquid Chromatogram | 23 |
Common terms and phrases
accurately transfer-take affinity column aqueous solution 70 benzene buffer solution centrifugation chemical compound chromatographic column chromatographic purity concentration constant volume content of sterigmatocystin corresponding chromatographic peak dilute Disodium hydrogen phosphate drain the affinity eluent evaporating dish expressed in mL Figure A.1 flow rate fluorescence intensity g of disodium High-speed pulverizer Hydrochloric acid immunoaffinity column isotope internal standard liquid chromatography mass spectrometry membrane to filter minimum detection amount mL of acetonitrile mL of methanol mL of water mL volumetric flask mL/min ng/mL peak area peanut sample petroleum ether phase extraction column Potassium chloride Potassium dihydrogen phosphate pump to drain reach a constant reference conditions sample injection sample solution scale test tube series working solution service solution 0.4 sodium chloride sodium chloride solution solid phase extraction standard curve standard point standard service solution standard solution standard working solution Sterigmatocystin standard substance sub-ion Take the supernatant thin-layer plate trichloromethane vacuum pump volumetric flask weigh-take