GB/T 23198-2008Determination of oxolinic acid residues in animal original food (English PDF)

1 Scope

This standard specifies the foods of animal origin

Liquid chromatographic method quinoline acid residues.

This standard applies to fish, poultry, pork, beef

Determination of quinoline acid residues.

The method detection limit was 1µg/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 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)

Principle 3

Samples were extracted with dichloromethane. After the extract was concentrated, the residue was dissolved in dilute hydrochloric acid solution. Dilute hydrochloric acid was added n-hexane liquid-liquid extraction

Take, abandoned hexane. Dilute hydrochloric acid solution and extracted with dichloromethane the residue, the extract was concentrated to dryness. The residue was dissolved in methanol and treated with

Fluorescence detector measured by HPLC, external standard.

4 Reagents and materials

Unless otherwise specified, the reagents were of analytical grade, test water should be consistent with GB/T 6682 a water standards.