GB/T 22944-2008Determination of clenbuterol residues in honey - LC-MS-MS method (English PDF)
蜂蜜中克伦特罗残留量的测定 液相色谱-串联质谱法
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 31, 2008
Implementation date
May 1, 2009
Scope
GB/T 22944-2008 is the English-translated version of 蜂蜜中克伦特罗残留量的测定 液相色谱-串联质谱法.
GB/T 22944-2008 is the Chinese standard "Determination of clenbuterol residues in honey - LC-MS-MS method". Its scope clause reads: This standard specifies the amount of clenbuterol residues in honey by liquid chromatography - tandem mass spectrometry.
This standard applies to the determination of clenbuterol residues in honey. The standard method detection limit of 1µg/kg. Its clauses include reagents and materials.
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Document preview — GB/T 22944-2008
National Standard of the People's Republic of China
- Classification
- X 04
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 Normative references
- 4 Reagents and materials
- 4.1 Water
- 4.2 Methanol
- 4.3 acetonitrile
- 4.4 Sodium acetate
- 4.5 glacial acetic acid
- 4.6 ammonia
- 4.7 formic acid
- 4.9 ammonia - methanol solution (1 + 19)
- 4.10 in methanol (3 + 7)
- 4.13 clenbuterol standard substance (CAS37148-27-9)
1 Scope
This standard specifies the amount of clenbuterol residues in honey by liquid chromatography - tandem mass spectrometry.
This standard applies to the determination of clenbuterol residues in honey.
The standard method detection limit of 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 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
Clenbuterol residues in honey with sodium acetate buffer solution (pH = 5.0) extracted, filtered, dried OasisHLB1) or equivalent solid phase
Extraction column, eluted with a solution of ammonia and methanol evaporated and the residue was dissolved in methanol and 0.1% formic acid solution, over 0.2µm membrane, the sample solution
For liquid chromatography - tandem mass spectrometer, internal standard.
4 Reagents and materials
1) OasisHLB solid phase extraction columns are Waters company's product trade name, this information is given for the convenience of users of this standard, not the table
Endorsement of the product shown. If other equivalent product has the same effect, you can use these equivalent products.
4.1 Water
GB/T 6682, level.
4.2 Methanol
chromatographically pure.
4.3 acetonitrile
chromatography.
4.4 Sodium acetate
pure class distinctions.
4.5 glacial acetic acid
pure class distinctions.
4.6 ammonia
AR.
4.7 formic acid
pure class distinctions.
Solution, with glacial acetic acid (4.5) was adjusted to a pH of 5.0, and then water volume to 1000mL.
4.9 ammonia - methanol solution (1 + 19)
lessons 5mL ammonia (4.6) and 95mL of methanol (4.2) and mix well.
4.10 in methanol (3 + 7)
Measure 30mL of methanol and 70mL of water were mixed uniformly.
4.12
methanol and 0.1% formic acid (1 + 19). Amount of 5mL of methanol and 95mL0.1% formic acid solution (4.11) and mixed.
4.13 clenbuterol standard substance (CAS37148-27-9)
purity >=95%.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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