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GB/T 20771-2008 English PDF

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Q: Should I purchase the latest version GB/T 20771-2008?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20771-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$1809.00 · In stock
Delivery: <= 13 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 20771-2008: Determination of 486 pesticides and related chemicals residues in honey -- LC-MS-MS method
Status: Valid

GB/T 20771: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20771-2008	1809	Add to Cart	13 days	Determination of 486 pesticides and related chemicals residues in honey -- LC-MS-MS method	Valid
GB/T 20771-2006	RFQ	ASK	14 days	Honey, fruit juice and wine 420 kinds of pesticides and related chemicals residues in liquid chromatography -- Tandem mass spectrometry	Obsolete

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Basic data

Standard ID: GB/T 20771-2008 (GB/T20771-2008)
Description (Translated English): Determination of 486 pesticides and related chemicals residues in honey -- LC-MS-MS method
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 82,850
Date of Issue: 2008-12-31
Date of Implementation: 2009-05-01
Older Standard (superseded by this standard): GB/T 20771-2006
Quoted Standard: 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 acacia honey, Rape honey, linden tree honey, buckwheat honey, Date Honey 486 pesticides and related chemicals residues in liquid chromatography-tandem mass spectrometry. This standard applies to acacia honey, Rape honey, linden tree honey, buckwheat honey, qualitative identification Date Honey 486 pesticides and related chemicals residues, but also for the quantitative determination of 461 kinds of pesticides and related chemicals residues. 461 kinds of pesticides quantitative determination of the criteria and related chemicals detection limit of 0. 01 ��g/kg ~ 3. 34 mg/kg.

GB/T 20771-2008: Determination of 486 pesticides and related chemicals residues in honey -- 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 486 pesticides and related chemicals residues in honey-LC-MS-MS method ICS 67.050 X04 National Standards of People's Republic of China Partially replace GB/T 20771-2006 Honey 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

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 result of the calculation 5 9 Precision 6 Appendix A (informative) 486 kinds of pesticides and related chemicals English name, the detection limit, grouping, solvent selection and mixing Standard concentration Table 7 Annex B (informative) 486 kinds of pesticides and related chemicals monitoring ion pair, air collision energy, and a retention time of voltage to cluster 22 Annex C (informative) 486 kinds of pesticides and related chemicals in multiple reaction monitoring (MRM) chromatogram 38 Annex D (informative) 486 kinds of pesticides and related chemicals precision data table 56 Appendix E (normative) 486 kinds of pesticides and related chemicals English name Chinese control index (in alphabetical order) 71

Foreword

The partial replacement of standard GB/T 20771-2006 "honey, fruit juice and wine in 420 kinds of pesticide residues determination by liquid chromatography - Tandem mass spectrometry. " This standard compared with GB/T 20771-2006, the main changes are as follows. --- The determination of honey is separated from the GB/T 20771-2006 out, revision of this standard, and to redefine the standard name; --- Pesticides can be measured by the 420 kinds to 486 kinds, an increase of negative ESI and APCI source of positive and negative test for the presence of pesticide varieties; --- Optimized pretreatment methods and increasing the negative ESI and APCI source source of positive and negative 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, Hebei University. The main drafters of this standard. Pang Guofang, Li Yan, Individual Students Lian Jing, Zhao Shujun, ZHENG Hong, Liu Yongming, Caoyan Zhong, Zhang Jinjie, Li Xuemin. This standard was first published in 2006. Honey 486 pesticides and related chemicals Determination of residues of liquid chromatography - tandem mass spectrometry

1 Scope

This standard specifies the acacia honey, rape honey, linden tree honey, buckwheat honey, Date Honey 486 pesticides and related chemicals (see Appendix A and Appendix E) residual amount of liquid chromatography - tandem mass spectrometry. This standard applies to acacia honey, rape honey, linden tree honey, buckwheat honey, Date Honey 486 pesticides and related chemicals residues qualitative Kam Do not also suitable for the quantitative determination of 461 kinds of pesticides and related chemicals residues. 461 kinds of pesticides and related chemicals quantitative determination of the standard method detection limit was 0.01μg/kg ~ 3.34mg/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) Principle 3 The sample was extracted with dichloromethane, the solid-phase extraction (SPE) eluting pesticides and related chemicals, liquid chromatography with acetonitrile and toluene (3 + 1) - Tandem mass spectrometer detection, external standard.

4 Reagents and materials

Water as a water GB/T 6682 regulations. 4.1 acetonitrile. chromatography. 4.2 acetone. chromatography. 4.3 Toluene. pure class distinctions. 4.4 isooctane. chromatography. 4.5 hexane. chromatographically pure. 4.6 Methanol. chromatographically pure. 4.7 dichloromethane. chromatography. 4.8 microfiltration membrane (nylon). 13mm × 0.2μm. 4.9 Sep-Pak Amino-SPE. 1g, 6mL or equivalent person. 4.10 0.05% formic acid solution (volume fraction). 4.11 5mmol/L ammonium acetate solution. Weigh 0.375g ammonium acetate diluted with water to 1000mL. 4.12 acetonitrile and toluene (3 + 1, volume ratio). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 20771-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 20771-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 9 ~ 13 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 20771-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 20771-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 20771-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20771-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.