GB/T 20769-2008 English PDF

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GB/T 20769-2008: Determination of 450 pesticides and related chemicals residues in fruits and vegetables -- LC-MS-MS method
Status: Valid

GB/T 20769: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20769-2008	1719	Add to Cart	10 days	Determination of 450 pesticides and related chemicals residues in fruits and vegetables -- LC-MS-MS method	Valid
GB/T 20769-2006	RFQ	ASK	14 days	405 kinds of fruits and vegetables pesticides and related chemicals residues in liquid chromatography -- Tandem mass spectrometry	Obsolete

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Basic data

Standard ID: GB/T 20769-2008 (GB/T20769-2008)
Description (Translated English): Determination of 450 pesticides and related chemicals residues in fruits and vegetables -- LC-MS-MS method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 78,769
Date of Issue: 2008-12-31
Date of Implementation: 2009-05-01
Older Standard (superseded by this standard): GB/T 20769-2006
Quoted Standard: GB/T 6379.1; GB/T 6379.2; GB/T 6682; GB/T 8855
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 apple, celery, , orange, cabbage tomatoes 450 kinds of pesticides and related chemicals (see Appendix A and Appendix E) residues in liquid chromatography-tandem mass spectrometry. This standard applies to apples, orange, cabbage, celery, quantitative and qualitative identification of tomatoes 450 kinds of pesticides and related chemicals residues of 381 pesticides and related chemicals residues determination. 381 kinds of pesticides quantitative determination of the criteria and related chemicals detection limit of 0. 01 ��g/kg ~ 0. 606 mg/kg (see Appendix A).

GB/T 20769-2008: Determination of 450 pesticides and related chemicals residues in fruits and vegetables -- LC-MS-MS method

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Determination of 450 pesticides and related chemicals residues in fruits and vegetables. LC-MS-MS method ICS 67.050 X04 National Standards of People's Republic of China Replacing GB/T 20769-2006 Fruits and vegetables 450 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 3 8 4 Calculation Results 9 Precision 5 Appendix A (Informative Appendix) 450 pesticides and related chemicals English name, the detection limit, grouping, solvent selection and Mixed standard solution concentration in Table 6 Annex B (informative) 450 kinds of pesticides and related chemicals monitoring ion pair, air collision energy, and a retention time of voltage to cluster 20 Appendix C (Informative Appendix) 450 pesticides and related chemicals in multiple reaction monitoring (MRM) chromatogram 36 Annex D (informative) 450 kinds of pesticides and related chemicals precision data table 53 Appendix E (Informative Appendix) 450 pesticides and related chemicals English name Chinese control index (in alphabetical order) 67

Foreword

This standard replaces GB/T 20769-2006 "Fruits and vegetables 405 pesticides and related chemicals residues measured liquid chromatography Spectrum - tandem mass spectrometry. " This standard compared with GB/T 20769-2006, the main changes are as follows. --- Pesticides can be measured by the 405 kinds to 450 kinds, an increase of agrochemicals negative ESI source detection; --- Increasing the negative ESI source 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, Li Yan, Individual Students Lian Jing, Cao Jing, Wang Wenwen, ZHENG Hong, Liu Yongming, Caoyan Zhong, Zhang Jinjie, Li Xuemin. This standard was first published in 2006. Fruits and vegetables 450 pesticides and related chemicals Determination of residues of liquid chromatography - tandem mass spectrometry

1 Scope

This standard specifies the apples, oranges, cabbage, celery, tomatoes 450 pesticides and related chemicals (see Appendix A and attached Catalog E) residual amount of liquid chromatography - tandem mass spectrometry. This standard applies to apples, oranges qualitative identification, cabbage, celery, tomatoes 450 pesticides and related chemicals residues, Quantitative determination of 381 kinds of pesticides and related chemicals residues. 381 kinds of pesticides and related chemicals quantitative determination of the standard method detection limit was 0.01μg/kg ~ 0.606mg/kg (see attached Record 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) GB/T 8855 fresh fruits and vegetables sampling method (GB/T 8855-2008, ISO 874. 1980, IDT) Principle 3 Homogenized sample with acetonitrile extraction, salting centrifugation, Sep-PakVac column 1) purification eluting pesticides and related chemical with acetonitrile and toluene (3 + 1) Products, liquid chromatography - tandem mass spectrometer, external standard.

4 Reagents and materials

Water as a water GB/T 6682 regulations. 4.1 acetonitrile. chromatography. 4.2 hexane. chromatographically pure. 4.3 isooctane. chromatography. 4.4 Toluene. pure class distinctions. 4.5 acetone. chromatography. 4.6 dichloromethane. chromatography. 4.7 Methanol. chromatographically pure. 4.8 microfiltration membrane (nylon). 13mm × 0.2μm. 4.9 Sep-PakVac1) amino SPE. 1g, 6mL or equivalent person. 1) Sep-PakVac column is SUPELCO company's product trade name, this information is given for the convenience of users of this standard is not expressed Approval of the product. If other equivalent product has the same effect, you can use these equivalent products. ......

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