Standard No.:	GB/T 20753-2006
English Name:	Method for the determination of melengestrol acetate chlormadinone acetate and megestrol acetate residues in bovine and porcine fat - LC-UV detection method
Chinese Name:	牛和猪脂肪中醋酸美仑孕酮、醋酸氯地孕酮和醋酸甲地孕酮残留量的测定 液相色谱-紫外检测法
Chinese Classification:	X04    Basic standards and general methods
Professional Classification:	GB    National Standard
Source Content Issued by:	AQSIQ; SAC
Issued on:	2006-12-31
Implemented on:	2007-3-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	3000 words
Translation Price(USD):	90.0
Delivery:	via email in 1 business day

1 Scope This standard specifies the liquid chromatography method for determination of melengestrol acetate, chlormadinone acetate and megestrol acetate residues in bovine and porcine fat. This standard is applicable to the determination of melengestrol acetate, chlormadinone acetate and megestrol acetate residues in bovine and porcine fat. Method detection limit of this standard: melengestrol acetate, megestrol acetate and chlormadinone acetate are all 0.010 mg/kg. 2 Normative references The following documents contain provisions which, through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments (excluding corrections), or revisions, of any of these publications do not apply to this standard. 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 undated references, the latest edition 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 analytical laboratory use—Specification and test methods (GB/T 6682-1992, neq ISO 3696: 1987)

Foreword i 1 Scope 2 Normative references 3 Principle 4 Reagents and materials 5 Apparatus 6 Preparation and preservation of specimen 7 Determination procedures 8 Calculation of result 9 Precision Annex A (Informative) Reference material liquid chromatogram Annex B (Informative) Recovery rate