SN/T 1392-2015 English PDF

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SN/T 1392-2015: Determination of MCPA and MCPB residues in meat and meat products for export--HPLC-MS/MS method
Status: Valid

SN/T 1392: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 1392-2015	419	Add to Cart	4 days	Determination of MCPA and MCPB residues in meat and meat products for export--HPLC-MS/MS method	Valid
SN/T 1392-2004	719	Add to Cart	5 days	MCPA in the import and export of meat and meat products and 2 A 4 neoprene acid residues	Obsolete

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GB/T 9959.1   SB/T 10381   SB/T 10294   SN/T 5652.3   SN/T 4747.1   SN/T 4744   

Basic data

Standard ID: SN/T 1392-2015 (SN/T1392-2015)
Description (Translated English): Determination of MCPA and MCPB residues in meat and meat products for export--HPLC-MS/MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X22
Classification of International Standard: 67.120.10
Word Count Estimation: 18,138
Date of Issue: 2015-09-02
Date of Implementation: 2016-04-01
Older Standard (superseded by this standard): SN/T 1392-2004
Regulation (derived from): AQSIQ Announcement 2015 - Batch 3 - 103 Industry Standards
Issuing agency(ies): General Administration of Customs

SN/T 1392-2015: Determination of MCPA and MCPB residues in meat and meat products for export--HPLC-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.
(Exports of meat and meat products MCPA and MCPB acid residues in detection liquid chromatography/tandem mass spectrometry) People's Republic of China Entry-Exit Inspection and Quarantine Industry Standard Replace SN/T 1392-2004 Exporting 2, 4 and 4 chlorine in meat and meat products 2 methyl 4-chlorobutyric acid residue detection method Liquid chromatography/tandem mass spectrometry Released on.2015-09-02 2016-04-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued Entry and exit inspection and quarantine Industry Standard Exporting 2, 4 and 4 chlorine in meat and meat products 2 methyl 4-chlorobutyric acid residue detection method Liquid chromatography/tandem mass spectrometry China Standard Press Publishing First edition, January.2018

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009. This standard replaces SN/T 1392-2004 "Test Method for Residues of 2, 4, 4 and 4 Chlorobutyric Acid in Import and Export Meat and Meat Products". Compared with SN/T 1392-2004, the main technical changes of this standard are as follows. --- Determination method is liquid chromatography-tandem mass spectrometry; --- Pretreatment uses liquid-liquid distribution method, which simplifies the pre-treatment steps; --- The standard applies from beef to beef, pork, fish, chicken and canned beef; --- Sampling steps were omitted. This standard was proposed by the National Certification and Accreditation Administration. This standard is under the jurisdiction of the National Import and Export Food Testing Standardization Technical Committee (SAC/TC445). This standard was drafted. Tianjin Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Li Shujing, Chen Qiyong, Yan Jiebo, Wang Fei, Lin Anqing, Xu Wei. Exporting 2, 4 and 4 chlorine in meat and meat products 2 methyl 4-chlorobutyric acid residue detection method Liquid chromatography/tandem mass spectrometry

1 Scope

This standard specifies the determination of 2, 4-chloro and 2, 4-chlorobutyric acid residues in exported meat and meat products by liquid chromatography/tandem mass spectrometry. method. This standard applies to the export of freeze-segmented beef, fish, pork, chicken, beef cans, 2, 4, 4 and 4, 4, 4-chlorobutyric acid residues Detection.

2 Normative references

The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article. Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 6682 Analytical laboratory water specifications and test methods (GB/T 6682-2008, ISO 3696.1987, MOD)

3 Method summary

Under acidic conditions, the residual 2 methyl chloride and 2 methyl 4-chlorobutyric acid in the sample were extracted with dichloromethane, and the extract was replaced by solvent. Liquid chromatography-mass spectrometry-mass spectrometry, external standard method for quantification.

4 reagents and materials

Unless otherwise specified, the reagents used were of analytical grade and the water was the first grade water specified in GB/T 6682. 4.1 Dichloromethane. chromatographically pure. 4.2 Methanol. chromatographically pure. 4.3 Formic acid. chromatographically pure. 4.4 Concentrated sulfuric acid. excellent grade pure. 4.5 Sodium chloride. excellent grade pure. 4.6 Sulfuric acid-water (1 9). Prepared with excellent grade pure sulfuric acid (4.4). 4.7 0.1% aqueous formic acid. 4.8 2 A 4 chlorine standard. purity is greater than or equal to 99%, CAS. 94-74-6. 4.9 2 methyl 4-chlorobutyric acid standard. purity greater than or equal to 99%, CAS. 94-82-6. 4.10 0.1mg/mL standard stock solution. accurately weigh the appropriate amount of 2 methyl 4-chloro and 2-methyl 4-chlorobutyric acid standards, and prepare the concentration with methanol. A 0.1 mg/mL standard stock solution. 4.11 Mixed standard working solution. Use the corresponding matrix solution to prepare the standard working solution at the applicable concentration.

5 Instruments and equipment

5.1 Ultra-high pressure liquid chromatography-tandem mass spectrometer equipped with an electrospray ionization source (ESI). ......

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