GB 5009.253-2016 Translated English of Chinese Standard. GB5009.253-2016: National Standard for Food Safety - Determination of Perfluorooctane Sulfonate (PFOS) and Perfluorooctanoic Acid (PFOA) in Animal-derived Food
https://www.chinesestandard.net, 24 Jun 2018 - 11 halaman
This Standard specifies the method of isotope dilution liquid chromatography-tandem mass spectrometry in the determination of PFOS and PFOA in animal-derived food. This Standard shall be applicable to the determination of PFOS and PFOA in animal-derived food. Adopt acetonitrile to extract PFOS and PFOA from the sample. Start dispersive solid phase extraction and purification; adopt liquid chromatography-tandem mass spectrometer to determine PFOS and PFOA. Adopt the internal standard method to quantify the content.
Instruments and Equipment
Expression of Analysis Results
Appendix A Mass Spectrometry Reference Conditions
Appendix B Typical Liquid Chromatography of PFOA and PFOS and the Internal Standard Tandem Mass Spectrometry MRM Figure
13C4-PFOA density absorb standard stock acetonitrile add methanol Ammonium acetate Analytical animal-derived food approximately 7.66 blank test chromatographic purity chromatography-tandem mass spectrometer Collision Voltage contains 13C isotope content of PFOA determination of PFOS fluid of PFOS Fragmentor Voltage g accurate Hydrochloric acid independent determination results internal standard method limit of PFOA liquid chromatography-tandem mass Mass Spectrometry Reference methanol to dilute mixed standard solution obtained under repeatability organic solvents peak area ratio peak of corresponding Perfluorooctane sulfonate PFOS PFOA in animal-derived PFOA or PFOS PFOS and PFOA PFOS chromatographic peak PFOS density obtained PFOS solution pipeline Prepare mixed series ProElut filler Qualitative Ion Pair r/min ratio between PFOA refer to Appendix remain valid sample series of standard Sodium chloride solution of 13C4-PFOA solution of PFOS Spectrometry Reference Conditions standard curve line standard stock solution standard working fluid Store Table A.1 temperature of 4°C test solution test vessels Voltage and Retention Weigh-take