GB/T 21314-2007Determination of cephapirin and ceftiofur residues in foodstuffs animal origin - LC-MS/MS method (English PDF)

1 Scope

This standard specifies the foods of animal origin aspirin cephalosporins, ceftiofur residues in liquid chromatography - mass spectrometry/mass spectrometry and confirmation methods.

This standard applies to animal muscle, liver, kidney, eggs and milk cephalosporin aspirin (cephapirin), ceftiofur (ceftiofur) residue

Remaining amount detection.

2 Normative references

The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent

Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research

Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.

Laboratory use specifications and test methods (. 1987 neq ISO 3696) GB/T 6682-1992 Analysis

Principle 3

Samples aspirin cephalosporins, ceftiofur residue with acetonitrile - after aqueous extraction, the extract was concentrated, dissolved with buffer solution, solid phase extraction

Take SPE column eluate by dry nitrogen, liquid chromatography - mass spectrometry/mass spectrometry, external standard.

4 Reagents and materials

Unless otherwise indicated, the reagents used were of analytical grade water as a water GB/T 6682-1992 requirements.