1 Scope
This standard specifies the LC-MS-MS determination method for dexamethasone residues in milk and milk powder.
This standard is applicable to the determination and confirmation of dexamethasone residues in milk and milk powder
The method detection limit of this standard is 0.2 μg/kg for milk and 1.0 μg/kg for milk powder.
2 Normative References
The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated reference, subsequent amendments to (excluding any corrigendum), or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. For any undated references, the latest edition of the document referred to applies.
GB/T 6379.1 Accuracy (Trueness and Precision) of Measurement Methods and Results – Part 1: General Principles and Definitions (GB/T 6379.1-2004, ISO 5725-1:1994, IDT)
GB/T 6379.2 Accuracy (Trueness and Precision) of Measurement Methods and Results – Part 2: Basic Method for the Determination of Repeatability and Reproducibility of a Standard Measurement Method (GB/T 6379.2-2004, ISO 5725-2:1994, IDT)
GB/T 6682 Water for Laboratory Use - Specification and Test Methods (GB/T 6682-2008, ISO 3696:1987, MOD)
3 Principle
