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Determination of 448 pesticides and related chemicals residues in tea -- LC-MS-MS method
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GB/T 23205-2008
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Basic data | Standard ID | GB/T 23205-2008 (GB/T23205-2008) | | Description (Translated English) | Determination of 448 pesticides and related chemicals residues in tea -- LC-MS-MS method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.050 | | Word Count Estimation | 83,884 | | Date of Issue | 2008-12-31 | | Date of Implementation | 2009-05-01 | | Quoted Standard | GB/T 6379.1; GB/T 6379.2; GB/T 6682 | | Regulation (derived from) | National Standard Approval Announcement 2008 No.27 (Total No.140) | | 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 green tea, tea, tea, Oolong 448 kinds of pesticides and related chemicals (see Appendix A and Appendix E) residues in liquid chromatography-tandem mass spectrometry. This standard applies to green tea, tea, tea, qualitative identification oolong 448 kinds of pesticides and related chemicals residues, also applies to the 418 kinds of pesticides and related chemicals residues quantitatively. 418 kinds of pesticides quantitative determination of the criteria and related chemicals detection limit is 0. 03��g/kg ~ 1. 21mg/kg (see Appendix A). | GB/T 23205-2008: Determination of 448 pesticides and related chemicals residues in tea -- LC-MS-MS method
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Determination of 448 pesticides and related chemicals residues in tea. LC-MS-MS method
ICS 67.050
X04
National Standards of People's Republic of China
Tea 448 pesticides and related chemicals
Determination of residues of liquid chromatography - tandem mass spectrometry
Posted 2008-12-31
2009-05-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Table of Contents
Preface Ⅰ
1 Scope 1
2 Normative references 1
3 Principle 1
4 Reagents and materials 1
5 Apparatus 2
6 Sample Preparation and Storage 2
7 measuring step 2
8 4 Calculation Results
9 Precision 5
Appendix A (Informative Appendix) 448 pesticides and related chemicals, the English name, the detection limit, grouping, and mixed solvent selection
Combined standard solution concentration 6
Annex B (informative) 448 kinds of pesticides and related chemicals monitoring ion pair, energy collision gas, fragmentation voltage and retention of endogenous
Time 20
Appendix C (Informative Appendix) 448 pesticides and related chemicals in multiple reaction monitoring (MRM) chromatogram 35
Annex D (informative) 448 kinds of pesticides and related chemicals precision data in Table 59
Appendix E (Informative Appendix) 448 pesticides and related chemicals English name Chinese control index (in alphabetical order) 73
Foreword
The Standard Appendix A, Appendix B, Appendix C, Appendix D, Appendix E is an information appendix.
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 Qinhuangdao Exit Inspection and Quarantine, Tea Research Institute of Chinese Academy of Agricultural Sciences, Tianjin Bo
Naaijieer Technology Co., Ltd., Shandong Agricultural University.
The main drafters of this standard. Pang Guofang, Chen Zongmao, Caoyan Zhong, Hu Xueyan, Individual Students group Wang Jie, Liang Ping, Luo Fengjian, building positive cloud, Li Yan,
Liu Guangming, Tangfu Bin, Zhang Junyan.
Tea 448 pesticides and related chemicals
Determination of residues of liquid chromatography - tandem mass spectrometry
1 Scope
This standard specifies the green tea, black tea, Pu'er tea, oolong tea 448 pesticides and related chemicals (see Appendix A and Appendix E) residue
The amount of liquid chromatography - tandem mass spectrometry.
This standard applies to green tea, black tea, Pu'er tea, oolong tea 448 pesticides and related chemicals residues qualitative identification, but also for
Quantitative 418 kinds of pesticides and related chemicals residues determination.
418 kinds of standard quantitative determination of this pesticide and related chemicals detection limit was 0.03μg/kg ~ 1.21mg/kg (see Appendix A).
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
Homogenized sample with acetonitrile extraction, solid phase extraction (SPE) eluting with acetonitrile and toluene (3 + 1) pesticides and related chemicals by liquid chromatography
Spectrum - tandem mass spectrometer, external standard.
4 Reagents and materials
Water as a water GB/T 6682 regulations.
4.1 acetonitrile. chromatography.
4.2 Toluene. pure class distinctions.
4.3 acetone. chromatography.
4.4 isooctane. chromatography.
4.5 Methanol. chromatographically pure.
4.6 acetic acid. pure class distinctions.
4.7 sodium chloride. AR.
4.8 microfiltration membrane (nylon). 13mm × 0.2μm.
4.9 CleanertTPT1) SPE. 10mL, 2.0g or equivalent person.
1) CleanertTPT column is Agela company's product trade name, this information is given for the convenience of users of this standard, it does not mean the production
Approved products. If other equivalent product has the same effect, you can use these equivalent products.
4.10 0.1% formic acid solution (volume fraction).
4.11 5mmol/L ammonium acetate solution. Weigh 0.375g ammonium acetate diluted with water to 1000mL.
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