GB/T 21315-2007 Translated English of Chinese Standard. (GBT 21315-2007, GB/T21315-2007, GBT21315-2007): Determination of penicillins residues in foodstuffs of animal origin - LC-MS/MS methodhttps://www.chinesestandard.net, 27.4.2019 - 16 sivua This Standard specifies the determination and confirmation of LC-MS/MS method for penicillins residues in foodstuffs of animal origin. This Standard applies to the determination of 11 penicillins residues of amoxicyllin, ampicillin, cloxacillin, dicloxacillin, nafcillin, oxacillin, gpenicillin, penicillin, azlocillin, methicillin, phenethicillin in pig muscles, pig liver, pig kidneys, milk, and eggs. |
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100 mL heart-shaped 11 kinds 50 mL centrifuge Accurately PIPETTE acetonitrile acetonitrile-water solution 4.9 ADD the above-mentioned adjust the pH Amoxicyllin Ampicillin Azlocillin Appendix buffer solution 4.12 CENTRIFUGE at 4000 chromatogram of quantitative chromatography-mass spectrometry/mass spectrometry collision gas energy declustering potential dicloxacillin DILUTE to 1000 dissolved in ultrapure eluent Formic acid gas pressure High-performance liquid chromatographic Inspection and Quarantine ion chromatographic peak kinds of penicillins LC-MS/MS method Limit of quantitation Liquid chromatograph-mass spectrometer/mass liquid chromatographic grade mass spectrometry conditions methanol milliliter mixed standard intermediate mL centrifuge tube mL of acetonitrile-water mL/min mol/L ammonium acetate mol/L phosphate buffer ng/mL nitrogen penicillins residues phenethicillin phosphate buffer solution pig kidneys pig liver potassium dihydrogen phosphate qualitative quantitative ion pair r/min Reconstructed ion chromatogram Rotary evaporator sample solution signal-to-noise ratio Sodium chloride solid-phase extraction cartridge standard intermediate solution standard solution standard stock standard working solutions supernatant is combined Table C.1 ultrapure water vortex mixer