YC/T 405.3-2011Tobacco and tobacco products. Determination of multi-pesticide residues. Part 3: Gas chromatography-mass spectrometry method and gas chromatographic methods (English PDF)

Foreword

YC/T 405 "Determination of pesticide residues in tobacco and tobacco products" is divided into five parts.

--- Part 1. High performance liquid chromatography - tandem mass spectrometry;

--- Part 2. organochlorine and pyrethroid pesticide residues by gas chromatography;

--- Part 3. Gas chromatography-mass spectrometry and gas chromatography;

--- Part 4. Determination of dithiocarbamate pesticide residues by gas chromatography mass spectrometry;

--- Part 5. maleic hydrazide pesticide residues by HPLC.

This section YC/T Part 3 405.

This section drafted in accordance with the rules of GB/T 1.1-2009 and GB/T 20001.4-2001 given.

Please note that some of the content of this document may involve patents. Release mechanism of the present document does not assume responsibility for the identification of these patents.

This part by the State Tobacco Monopoly Bureau.

This part of the National Technical Committee of Standardization Technical Committee on Tobacco Cigarette (SAC/TC144/SC1) centralized.

This section drafted by. China National Tobacco Quality Supervision and Inspection Center, China Tobacco Corporation, Zhengzhou Tobacco Research Institute, China Tobacco Standardization Research Center, Hongta Tobacco (Group) Co., Ltd., Hubei tobacco industry limited liability company.

1 Scope

YC/T of the provisions of section 405 of tobacco and tobacco products, 38 kinds of pesticide residues by gas chromatography-mass spectrometry and gas chromatography test methods.

This section applies to the tables in Appendix A A.1, determination of pesticide residues listed in Table A.2. The detection limit and the limit of quantification See attached A record tables A.1 and A.2.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document.

Laboratory use specifications and test methods GB/T 6682 Analysis Preparation and water YC/T 31 samples of tobacco and tobacco products - Determination oven method Principle 3 Add the appropriate amount of water to the pulverized sample using an acetonitrile and toluene was thoroughly infiltrated shaking extraction, extracts were secondary amine bonded N-Solid adsorbent (PSA adsorbent) preliminary purification, and then subjected to silica gel solid phase extraction column or Florisil solid-phase extraction (SPE) using gas Chromatography mass spectrometry (GC-MS) or gas chromatography (equipped with an electron capture detector, GC-ECD) was measured.

4 Reagents and materials

All reagents shall apply to pesticide residues analysis, and should (extraction and by GC-MS and GC-ECD method) using the measured sample Blank test in the same manner to check its purity, the baseline should be no solvent blank chromatogram impact of pesticide residues measured peak.

Water should reach GB/T 6682 a water requirements.

4.1 acetonitrile, pesticide grade.

4.2 Toluene, pesticide grade.

4.3 acetone, pesticide grade.

4.4 isooctane, pesticide grade.

4.5 Mixed solvent, toluene. isooctane was 1.1 (by volume).

4.6 anhydrous magnesium sulfate, AR. Before use should be burning 4h at 650 °C, stored in a desiccator.

4.7 Sodium chloride, analytical grade.

4.8 N- secondary amine bonded solid adsorbent (PSA adsorbent).

4.9 sodium citrate, AR.

4.10 disodium citrate, AR.