Home Cart Quotation About-Us
www.ChineseStandard.net
SEARCH

GB/T 20770-2008 English PDF

Q: How long will the true-PDF of English version of GB/T 20770-2008 be delivered?

Upon your order, we will start to translate GB/T 20770-2008_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.

Q: Can I share the purchased PDF of GB/T 20770-2008_English with my colleagues?

Yes. The purchased PDF of GB/T 20770-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Q: Does the price include tax/VAT?

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). Avoidance of Double Taxation Agreements (DTAs) between Singapore and 100+ Countries: https://www.iras.gov.sg/taxes/international-tax

Q: Do you accept my currency other than USD?

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.

Q: Should I purchase the latest version GB/T 20770-2008?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20770-2008 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$1939.00 · In stock
Delivery: <= 13 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 20770-2008: Determination of 486 pesticides and related chemicals residues in grains -- LC-MS-MS method
Status: Valid

GB/T 20770: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 20770-2008	1939	Add to Cart	13 days	Determination of 486 pesticides and related chemicals residues in grains -- LC-MS-MS method	Valid
GB/T 20770-2006	RFQ	ASK	11 days	Grains 372 pesticides and related chemicals residues in liquid chromatography -- Tandem mass spectrometry	Obsolete

Similar standards

GB/T 21311 GB/T 21315 GB/T 20756 GB/T 20771 GB/T 20772 GB/T 20769

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

---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 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

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). ......

Image

Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 20770-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 20770-2008_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 20770-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 20770-2008_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 20770-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 20770-2008 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.