GB/T 22969-2008Determination of streptomycin, dihydrostreptomycin and kanamycin residues in milk and milk powder - LC-MS-MS method (English PDF)

1 Scope

This standard specifies the milk, milk streptomycin, dihydrostreptomycin and kanamycin residues in liquid chromatography - tandem mass spectrometry.

This standard applies to milk, milk streptomycin, dihydrostreptomycin and determination of kanamycin residues.

The standard method detection limit. milk streptomycin, dihydrostreptomycin and kanamycin detection limits were 10.0µg/kg, milk powder chain

Neomycin, dihydrostreptomycin and kanamycin detection limits were 80.0µg/kg.

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.

GB/T 6379.1 measurement methods and results of Accuracy (trueness and precision) - Part 1. General principles and definitions (GB/T 6379.1-

2004, ISO 5725-1.1994, IDT)

GB/T 6379.2 measurement methods and results of Accuracy (trueness and precision) - Part 2. Determine the standard measurement method to repeat

Of the basic methods of reproduction (GB/T 6379.2-2004, ISO 5725-2.1994, IDT)

GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)

Principle 3

Milk or milk samples with antibiotic phosphoric acid extraction, TCA protein precipitation, solid phase extraction column with acid type and acid type

Purification. Liquid chromatography - tandem mass spectrometry (ESI +) detection, external standard.

4 Reagents and materials

Unless otherwise indicated, the reagents are pure class distinctions.