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GB/T 39670-2020 English PDF

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US$229.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
GB/T 39670-2020: Determination of nitrofuran metabolites in pet feeds - Liquid chromatography-tandem mass spectrometry
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 39670-2020	229	Add to Cart	3 days	Determination of nitrofuran metabolites in pet feeds - Liquid chromatography-tandem mass spectrometry	Valid

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Basic data

Standard ID: GB/T 39670-2020 (GB/T39670-2020)
Description (Translated English): Determination of nitrofuran metabolites in pet feeds - Liquid chromatography-tandem mass spectrometry
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: B46
Classification of International Standard: 65.120
Word Count Estimation: 12,185
Date of Issue: 2020-12-14
Date of Implementation: 2021-07-01
Quoted Standard: GB/T 6682; GB/T 20195
Regulation (derived from): National Standard Announcement No. 28 of 2020
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration
Summary: This standard specifies the nitrofuran metabolites in pet feed (3-amino-2-oxazolone, 5-morpholinomethyl-3-amino-2-oxazolidinone, 1-amino-hydantoin Liquid chromatography-tandem mass spectrometry method for the determination of urea, semicarbazide) residues. This standard applies to nitrofuran metabolites (3-amino-2-oxazolone, 5-morpholinmethyl-3-amino-2-oxazole) in pet feed made from animal-derived ingredients as the main raw material. Determination of residual amount of alkyl ketone, 1-amino-hydantoin, semicarbazide). The detection limit of this standard is 0.25ug/kg, and the quantification limit is 0.5ug/kg.

GB/T 39670-2020: Determination of nitrofuran metabolites in pet feeds - Liquid chromatography-tandem mass spectrometry

---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 nitrofuran metabolite residues in pet feed-liquid chromatography-tandem mass spectrometry) ICS 65:120 B46 National Standards of People's Republic of China Residual amount of nitrofuran metabolites in pet feed Determination of liquid chromatography-tandem mass spectrometry 2020-12-14 release 2021-07-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

Foreword

This standard was drafted in accordance with the rules given in GB/T 1:1-2009: Please note that certain contents of this document may involve patents: The issuing agency of this document is not responsible for identifying these patents: This standard was proposed and managed by the National Feed Industry Standardization Technical Committee (SAC/TC76): Drafting organizations of this standard: Nanjing Customs of the People's Republic of China, Huaian Customs of the People's Republic of China, Jiangsu Haiqi Great Wall Co:, Ltd: Division, Huaiyin Teachers College: The main drafters of this standard: Jiang Yuan, He Jian, Wei Yunji, Huan Haixia, Zhu Zhenyi, Feng Min, Wang Yuanjian, Ke Jiafa, Zhang Yang, Zhang Ke, Zhang Jingyou: Residual amount of nitrofuran metabolites in pet feed Determination of liquid chromatography-tandem mass spectrometry

1 Scope

This standard specifies the nitrofuran metabolites (3-amino-2-oxazolone, 5-morpholinomethyl-3-amino-2-oxazolidinone, 1-amino-hydantoin, semicarbazide) residual amount of liquid chromatography-tandem mass spectrometry method: This standard applies to nitrofuran metabolites (3-amino-2-oxazolone, 5-morpholinomethyl-3-amino-2-oxazolidinone, 1-amino-hydantoin, semicarbazide) determination of residual amount: The detection limit of this standard is 0:25μg/kg, and the limit of quantification is 0:5μg/kg:

2 Normative references

The following documents are indispensable for the application of this document: For dated reference documents, only the dated version applies to this article Pieces: For undated references, the latest version (including all amendments) applies to this document: GB/T 6682 Analytical laboratory water specifications and test methods GB/T 20195 Preparation of animal feed samples

3 Abbreviations

The following abbreviations apply to this document: AOZ: 3-amino-2-oxalidinone (3-amino-2-oxalidinone) AMOZ: 5-morpholinomethyl-3-amino-2-oxalidinone (5-morpholinomethyl-3-amino-2-oxalidinone) AHD: 1-amino-hydantoin (1-amino-hydantoin) SEM: semicarbazide

4 Principle

The sample is precipitated with trichloroacetic acid to free the nitrofuran metabolites, and it is derivatized with o-nitrobenzaldehyde under dark conditions: After the ethyl acid was extracted, it was detected by liquid chromatography-tandem mass spectrometry and quantified by isotope internal standard method:

5 Reagents or materials

Unless otherwise specified, only use analytical reagents: 5:1 Water: GB/T 6682, level one: 5:2 Acetonitrile: chromatographically pure: 5:3 Ammonium acetate: chromatographically pure: 5:4 Formic acid: chromatographically pure: 5:5 Methanol: chromatographically pure: 5:6 Dimethyl sulfoxide: ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 39670-2020_English be delivered?

Answer: Upon your order, we will start to translate GB/T 39670-2020_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 39670-2020_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 39670-2020_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.