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Determination of 9 Penicillin Residues in Animal-derived Foods——Liquid Chromatography-Tandem Mass Spectrometry
Food safety analysis workflow
Thermo Scientific Life Science MS not only has a long tradition of technology, but also continues to innovate. Quadrupole mass analysis of true conjugate hyperboloids that fits the perfect theoretical electric field of a textbook is used on all TSQ® triple quadrupole mass spectrometers. Since launching the world's first triple quadrupole MS/MS (TSQ®) mass spectrometer in 1980, TSQ® triple quadrupole mass spectrometer has been widely used in environmental protection, agriculture, quarantine, food safety, etc. Analytical testing, fully capable of testing routine testing of large-volume samples of crops, livestock and poultry products, dairy products and related processed foods, such as pesticide residues in food, veterinary drug residues, mycotoxins, additives, nutritional supplements and organic pollutants And other projects to help you easily meet the increasingly stringent regulatory requirements.
TSQ® Triple Quadrupole Mass Spectrometer and Thermo Fisher Food Safety Testing Strategy
summary
Β-lactam antibiotics (β-lactams) are a class of antibiotics with a β-lactam ring in the chemical structure, including clinically used penicillins and cephalosporins, which are widely used in many infectious diseases of humans and animals. Treatment, daily testing involves animal-derived samples such as livestock, aquatic products, bee products, and dairy products. This article refers to GB/T 20755-2006, GB/T 18932.25-2005, GB/T 21315-2007, SN/T 2050-2008, GB/T 22952-2008, GB/T 22975-2008, GB/T 22942-2008 , GB/T 21314-2007, SN/T 1988-2007, GB/T 22960-2008, GB/T 22989-2008, simplified from GB/T 22975-2008 is an instrument for rapid detection of 9 penicillin residues Method, internal standard method for quantification.
Pretreatment
For related reagent materials, standard configuration and reserves, and sample preparation methods, please refer to the above standards. For related instrument methods, please refer to this document. ( TSQ Triple Quadrupole Mass Spectrometer Concise Application Manual - Food Safety Testing )
instrument
The TSQ Triple Quadrupole LC/MS system is equipped with an ultra-high pressure liquid phase system.
Liquid phase condition
Mass spectrometry condition
SRM condition
Experimental result
Typical chromatogram (excerpt from GB/T 22975-2008 appendix)
Conclusion In the above national standard detection method, the detection limit of β-lactam antibiotics in different matrices is 1.0-32.0 μg/kg. The method is fully capable of meeting the requirements of domestic and international regulatory standards for sensitivity and reproducibility of conventional regulatory methods.