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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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