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GB/T 23744-2009 English PDF

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US$279.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 23744-2009: Determination of 36 pesticide residues in feedstuffs -- GC-MS
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 23744-2009	279	Add to Cart	3 days	Determination of 36 pesticide residues in feedstuffs -- GC-MS	Valid

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Basic data

Standard ID: GB/T 23744-2009 (GB/T23744-2009)
Description (Translated English): Determination of 36 pesticide residues in feedstuffs -- GC-MS
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B46
Classification of International Standard: 65.120
Word Count Estimation: 12,162
Date of Issue: 2009-05-12
Date of Implementation: 2009-09-01
Quoted Standard: GB/T 14699.1; GB/T 20195
Regulation (derived from): PRC National Standard Approval Announcement 2009 No.6 (Total No.146)
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 feed 36 kinds of pesticide residues by gas chromatography-mass spectrometry determination. This standard applies to feed, concentrated feed, single feed 36 kinds of determination of pesticide residues. This standard method detection limit of 0. 0125mg/kg ~ 0. 1mg/kg, method limit of quantitation 0. 0375mg/kg ~ 0. 5mg/kg.

GB/T 23744-2009: Determination of 36 pesticide residues in feedstuffs -- GC-MS

---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 36 persticide residues in feedstuffs-GC-MS ICS 65.120 B46 National Standards of People's Republic of China Feed multi-residue determination of 36 kinds of pesticides Gas chromatography - mass spectrometry GC-MS Posted 2009-05-12 2009-09-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

The Standard Appendix A, Appendix C is informative annex, Annex B normative appendix. This standard by the National Feed Industry Standardization Technical Committee (SAC/TC76) and focal points. This standard was drafted. Shanghai veterinary feed detection. The main drafters of this standard. Wong new suppliers army, Pan Juan, Huaxian Hui, Lu Chun, in trial of. Feed multi-residue determination of 36 kinds of pesticides Gas chromatography - mass spectrometry

1 Scope

This standard specifies the feed 36 kinds of pesticide residues by gas chromatography - mass spectrometry method. This standard applies to feed, concentrated feed, single feed Determination of 36 pesticide residues. The standard method detection limit of 0.0125mg/kg ~ 0.1mg/kg; quantitative limit 0.0375mg/kg ~ 0.5mg/kg.

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 14699.1 feed sampling (GB/T 14699.1-2005, ISO 6497.2002, IDT) GB/T 20195 preparation of animal feed samples (GB/T 20195-2006, ISO 6498.1998, IDT) Principle 3 After extracting the samples with acetonitrile and concentrated with acetonitrile to volume, adding PSA reagent (ethylene diamine -N- propyl silane) purification by gas chromatography - mass Spectral Method.

4 Reagents and solutions

Unless otherwise indicated in the analysis using only recognized as analytical reagents. 4.1 acetonitrile. chromatography. 4.2 hexane. chromatographically pure. 4.3 acetone. chromatography. A mixed solvent of n-hexane + 4.4 Acetone. 1 + 1. 4.5 PSA agent. ethylene diamine -N- propyl silane. 4.6 anhydrous magnesium. Burning 3h at 500 ℃, after cooling use. 4.7 sodium chloride. 4.8 Pesticide Standards. Purity ≥90% (Isocarbophos. Purity ≥75%). 4.8.1 Standard stock solution. Weigh accurately 25mg ~ 100mg (accurate to 0.02mg) each pesticide standard substance (4.8), respectively, with n-hexyl Alkyl + acetone mixed solvent (4.4) and diluted to 0.5mg/mL ~ 1mg mL concentrated standard/stock solution. 4.8.2 mixed standard solution. response sensitivity according to various pesticides on the instrument to determine its concentration in the mixed standard solution. Pipette a Single pesticide standard quantitative stock solution in 100mL flask with n-hexane + acetone mixed solvent (4.4) to the mark. Mixed standard Concentration of standard solution, see Appendix A. 4.8.3 mixed standard working solution. Take 4.8.2 mixed standard solution with n-hexane + acetone mixed solvent (4.4) to a mixed standard serial dilution Quasi working solution. 5. Apparatus 5.1 Gas chromatography - mass spectrometry. source with electron impact (EI). ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 23744-2009_English be delivered?

Answer: Upon your order, we will start to translate GB/T 23744-2009_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 23744-2009_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 23744-2009_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.