SN/T 1979-2019 English PDF

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SN/T 1979-2019: Determination of praziquantel residue in foodstuffs of animal origin for export -- LC-MS/MS method
Status: Valid

SN/T 1979: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 1979-2019	259	Add to Cart	3 days	Determination of praziquantel residue in foodstuffs of animal origin for export -- LC-MS/MS method	Valid
SN/T 1979-2007	679	Add to Cart	3 days	Determination of praziquantel residue in foodstuffs of animal origin for import and export. LC-MS/MS method	Obsolete

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Basic data

Standard ID: SN/T 1979-2019 (SN/T1979-2019)
Description (Translated English): Determination of praziquantel residue in foodstuffs of animal origin for export -- LC-MS/MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Word Count Estimation: 12,154
Date of Issue: 2019-10-25
Date of Implementation: 2020-05-01
Older Standard (superseded by this standard): SN/T 1979-2007
Regulation (derived from): General Administration of Customs Announcement No. 166 of 2019
Issuing agency(ies): General Administration of Customs

SN/T 1979-2007: Determination of praziquantel residue in foodstuffs of animal origin for import and export. 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 praziquantel residue in foodstuffs of animal origin for import and export.LC-MS/MS method Exit inspection and quarantine industry standard book People's Republic of China Importers residues in food of animal origin praziquantel Detection Liquid chromatography - mass spectrometry/mass spectrometry Posted 2007-08-06 2008-03-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

The Standard Appendix A, Appendix B are informative appendices. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Guangdong CIQ. The main drafters of this standard. Raymond, Linhai Dan, Wuying Xuan, Zhang dollars, Sun Liangjuan, Shaolin Zhi. This standard is the first release of the entry-exit inspection and quarantine industry standards. Importers residues in food of animal origin praziquantel Detection Liquid chromatography - mass spectrometry/mass spectrometry

1 Scope

This standard specifies the foods of animal origin praziquantel residue in sample preparation, liquid chromatography - tandem mass spectrometry detection and confirmation methods. This standard applies to animal muscle, liver, eel muscle measuring the residual praziquantel.

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. Laboratory use specifications and test methods GB/T 6682 Analysis

3 Sample Preparation and Storage

Samples taken in the edible parts of representative about 500g, with the organization stamp mill crushed into a clean container as a sample, seal and make a mark Knowledge, in the -18 ℃ refrigerator. Sample preparation process operation should prevent sample contamination or the occurrence of the change of residue content.

4 Method summary

Using ethyl acetate extract samples praziquantel residue, the extract was basic alumina SPE column liquid chromatography - tandem mass spectrometry measurement Fixed, external standard.

5 Reagents and materials

Unless otherwise specified, the reagents were of analytical grade water as a water GB/T 6682 regulations. 5.1 acetonitrile. HPLC grade. 5.2 Methanol. HPLC grade. 5.3 ethyl acetate. 5.4 glacial acetic acid. 5.5 0.1% (volume fraction) acetic acid solution. accurate Pipette 1.0mL glacial acetic acid (5.4) to a 1L volumetric flask, add water to the mark spare. 5.6 basic alumina cartridge. 1g, 6mL, or rather by the performance. 5.7 praziquantel. Purity ≥98%. 5.8 100mg/L standard stock solution. Weigh accurately praziquantel standard 10.0mg, dissolved in methanol and set the volume to 100mL, the standard stock Preparation was dark, placed in -18 ℃ refrigerator Save to 6 months. 5.9 standard working solution. According to the need to learn from 100mg/L standard stock solution of praziquantel a certain amount of (5.8) with acetonitrile - water (4 + 6, Volume Ratio) was diluted to the appropriate concentration of standard working solution, preparation before use. 5.10 0.2μm membrane, organic.

6 instruments and equipment

6.1 Liquid chromatography - mass spectrometry/mass spectrometry with electrospray ionization (ESI) source. ......

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