Raw milk and dairy products/other physicochemical component testing

This standard specifies three methods for the determination of melamine in raw milk, dairy products, and dairy products, namely high-performance liquid chromatography (HPLC), liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS), and gas chromatography-mass spectrometry [including gas chromatography-mass spectrometry (GC-MS) and gas chromatography-mass spectrometry/mass spectrometry (GC-MS/MS)]. This standard is applicable to the quantitative determination of melamine in raw milk, dairy products, and dairy products; Both liquid chromatography-mass spectrometry/mass spectrometry and gas chromatography-mass spectrometry (including gas chromatography-mass spectrometry/mass spectrometry) are applicable for the qualitative confirmation of melamine in raw milk, dairy products, and dairy products. The quantitative limit of this standard is 2 mg/kg for high-performance liquid chromatography, 0.01 mg/kg for liquid chromatography-mass spectrometry/mass spectrometry, and 0.05 mg/kg for gas chromatography-mass spectrometry (with 0.005 mg/kg for gas chromatography-mass spectrometry/mass spectrometry). 2 Normative References: The clauses in the following documents become clauses of this standard through reference in this standard. For dated reference documents, all subsequent amendments (excluding corrected content) or revisions are not applicable to this standard. However, parties to agreements based on this standard are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest version applies to this standard. GB/T6682 Specification and Test Methods for Water Used in Analytical Laboratories

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