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GB/T 20770-2008: Determination of 486 pesticides and related chemicals residues in grains -- LC-MS-MS method
Status: Valid GB/T 20770: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 20770-2008 | English | 1939 |
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Determination of 486 pesticides and related chemicals residues in grains -- LC-MS-MS method
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GB/T 20770-2008
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Grains 372 pesticides and related chemicals residues in liquid chromatography -- Tandem mass spectrometry
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GB/T 20770-2006
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Basic data | Standard ID | GB/T 20770-2008 (GB/T20770-2008) | | Description (Translated English) | Determination of 486 pesticides and related chemicals residues in grains -- LC-MS-MS method | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.050 | | Word Count Estimation | 88,851 | | Date of Issue | 2008-12-31 | | Date of Implementation | 2009-05-01 | | Older Standard (superseded by this standard) | GB/T 20770-2006 | | Quoted Standard | GB 5491; GB/T 6379.1; GB/T 6379.2; GB/T 6682 | | Issuing agency(ies) | General Administration of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 barley, rice, wheat, oat Corn 486 kinds of pesticides and related chemicals (see Appendix A and Appendix E) residues in liquid chromatography-tandem mass spectrometry. This standard applies to barley, oats, rice, qualitative and quantitative identification of 486 kinds of corn pesticides and related chemicals residues of 376 pesticides and related chemicals residues measured wheat. 376 kinds of pesticides quantitative determination of the criteria and related chemicals detection limit of 0. 02 ��g/kg ~ 0. 96 mg/kg (see Appendix A). | GB/T 20770-2008: Determination of 486 pesticides and related chemicals residues in grains -- LC-MS-MS method
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Determination of 486 pesticides and related chemicals residues in grains. LC-MS-MS method
ICS 67.050
X04
National Standards of People's Republic of China
Replacing GB/T 20770-2006
Cereals 486 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
Introduction Ⅲ
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 result of the calculation 5
9 Precision 5
Appendix A (informative) 486 kinds of pesticides and related chemicals Chinese and English name, the detection limit, grouping, solvent selection and
Mixed standard solution concentration in Table 6
Annex B (informative) 486 kinds of pesticides and related chemicals monitoring ion pair, energy collision gas, fragmentation voltage and endogenous
Retention time 21
Annex C (informative) 486 kinds of pesticides and related chemicals in multiple reaction monitoring (MRM) chromatogram 37
Annex D (informative) 486 kinds of pesticides and related chemicals precision data table 62
Appendix E (normative) 486 kinds of pesticides and related chemicals English name Chinese control index (in alphabetical order) 77
Foreword
This standard replaces GB/T 20770-2006 "multi-residue determination in Grains 372 kinds of pesticides and related chemicals - Liquid chromatography - mass
Spectroscopy and liquid chromatography - tandem mass spectrometry. "
This standard compared with GB/T 20770-2006, the main changes are as follows.
--- Pesticides can be measured by the 372 kinds expanded to 486 kinds, an increase of agrochemicals negative ESI source detection;
--- Changed the pretreatment method for selecting a new test equipment and test conditions.
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, Shandong Agricultural University.
The main drafters of this standard. Pang Guofang, Liu Yongming, Individual Students Caoyan Zhong, Cao Jing, Feng Zheng, Jing Lian, Jia light group, Zhang Jinjie, Li Xuemin,
Wu Yanping, Li.
This standard was first published in 2006.
Cereals 486 pesticides and related chemicals
Determination of residues of liquid chromatography - tandem mass spectrometry
1 Scope
This standard specifies the barley, wheat, oats, rice, corn 486 pesticides and related chemicals (see Appendix A and Appendix E) residues
Allowance liquid chromatography - tandem mass spectrometry.
This standard applies to qualitative identification of barley, wheat, oats, rice, corn 486 pesticides and related chemicals residues, 376 kinds of agriculture
Quantitative determination of drugs and related chemicals residues.
376 kinds of standard quantitative determination of this pesticide and related chemicals detection limit was 0.02μg/kg ~ 0.96mg/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 5491 grain and oilseeds testing for sampling, and sample method
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
Extraction method with acetonitrile homogeneous sample of pesticides and related chemicals, purifying gel permeation chromatography, liquid chromatography - tandem mass spectrometer, outside
Standard method.
4 Reagents and materials
Water as a water GB/T 6682 regulations.
4.1 acetonitrile. chromatography.
4.2 Methanol. chromatographically pure.
4.3 Cyclohexane. chromatography.
4.4 ethyl acetate. chromatography.
4.5 hexane. chromatographically pure.
4.6 Toluene. pure class distinctions.
4.7 acetone. chromatography.
4.8 isooctane. chromatography.
4.9 0.1% formic acid solution (volume fraction).
4.10 5mmol/L ammonium acetate solution. take 0.375g ammonium acetate diluted with water to 1000mL.
4.11 acetonitrile and toluene (3 + 1, volume ratio).
4.12 acetonitrile + water (3 + 2, volume ratio).
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