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GB/T 21168-2007 English PDF

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GB/T 21168-2007: Determination of tylosin residues in honey -- LC-MS/MS method
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PDF similar to GB/T 21168-2007


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Basic data

Standard ID GB/T 21168-2007 (GB/T21168-2007)
Description (Translated English) Determination of tylosin residues in honey -- LC-MS/MS method
Sector / Industry National Standard (Recommended)
Classification of Chinese Standard B47
Classification of International Standard 67.180.10
Word Count Estimation 8,874
Date of Issue 2007-10-31
Date of Implementation 2008-04-01
Quoted Standard GB/T 6682
Regulation (derived from) China National Standard Approval Announcement2007 No.12 (Total No.112)
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary This standard specifies the tylosin A residues in honey by liquid chromatography tandem mass spectrometry method �� feed, measurement procedure and the results of calculations. This standard applies to the determination of tylosin A residues in honey.

GB/T 21168-2007: Determination of tylosin residues in honey -- LC-MS/MS method

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Determination of tylosin residues in honey. LC-MS/MS method ICS 67.180.10 B47 National Standards of People's Republic of China Determination of tylosin residues in honey Liquid chromatography - tandem mass spectrometry Posted 2007-10-31 2008-04-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

Appendix A of this standard is an informative annex. This standard is proposed and managed by the State Administration of Quality Supervision Inspection and Quarantine of People's Republic of China. This standard was drafted. People's Republic of China Jiangsu Entry-Exit Inspection and Quarantine Bureau, People's Republic of China Henan Entry-Exit Inspection and Quarantine Bureau. The main drafters of this standard. Wu Bin, Wei Wei, Shen Wei Jian, Xu Jinzhong, Chen Huilan, Shen Chong Yu, Zhao Yun increased, Huang Juan, Jiang Yuan, Wang Jin Tao. Determination of tylosin residues in honey Liquid chromatography - tandem mass spectrometry

1 Scope

This standard specifies the tylosin A residues in honey by liquid chromatography - tandem mass spectrometry feeds, measurement step and results calculated. This standard applies to the determination of tylosin A residues in honey.

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 6682 analytical laboratory use specifications and test methods (GB/T 6682-1992, neq ISO 3696. 1987)

3 Method summary

After the dissolution of the sample with an alkaline solution, tylosin drug residue was extracted by solid phase extraction column eluent was concentrated methanol solution volume, liquid Chromatography - tandem mass spectrometer, external standard.

4 Reagents and materials

4.1 Water. Water should be consistent with a GB/T 6682 regulations. 4.2 Methanol. HPLC grade. 4.3 Sodium carbonate. AR. 4.4 sodium bicarbonate. AR. 4.5 water + methanol (2 + 8). Measure 20mL methanol (4.2) was mixed with 80mL water. 4.6 SPE. HLB, or rather who, 60mg, 3mL. 4.7 tylosin A standard. Purity ≥95%. 4.8 tylosin A standard stock solution. 1.0mg/mL. Accurately weighed amount of tylosin standard substance (4.7), paired with methanol 1.0mg/mL standard stock solution. Stock solution stored at 4 ℃ refrigerator, you can use two months. 4.9 tylosin A standard solution. liquid extraction with a blank sample were dubbed tylosin concentration of 2.0ng/mL, 5.0ng/mL, 10.0ng/mL, 50.0ng/mL, 100.0ng/mL, 200.0ng/mL standard solution. Standard working solution stored at 4 ℃, can One week. 4.10 Na2CO3-NaHCO3 buffer (0.1mol/L). Weigh 5.3g of sodium carbonate and sodium bicarbonate with the amount of 4.2g dissolved in water, dilute Diluted to 1000mL.

5 Instruments

5.1 Liquid chromatography - tandem mass spectrometry. equipped with electrospray ionization source. 5.2 Analysis of balance. a sense of the amount of 0.1mg and 0.01g each one. 5.3 nitrogen blowing instrument. 5.4 Vortex Mixer. 5.5 accumulator. 50mL.

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