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SN/T 1921-2007: Determination of residue of flumequine in foodstuffs of animal origin for import and export. LC-MS/MS method
Status: Valid
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1921-2007 | English | 579 |
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Determination of residue of flumequine in foodstuffs of animal origin for import and export. LC-MS/MS method
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SN/T 1921-2007
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Basic data | Standard ID | SN/T 1921-2007 (SN/T1921-2007) | | Description (Translated English) | Determination of residue of flumequine in foodstuffs of animal origin for import and export. LC-MS/MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | C53 | | Classification of International Standard | 67.020 | | Word Count Estimation | 18,174 | | Date of Issue | 2007-05-23 | | Date of Implementation | 2007-12-01 | | Regulation (derived from) | National-accreditation-Science [2011] 63 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the animal-derived foods flumequine residue liquid chromatography mass spectrometry/mass spectrometry. This standard applies to animal tissues, organs, eggs, milk, fish and shrimps flumequine residue testing. | SN/T 1921-2007: Determination of residue of flumequine in foodstuffs of animal origin for import and export. LC-MS/MS method
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Determination of residue of flumequine 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
Import and export of animal-derived foods Flumequine Residues
Detection Liquid chromatography - mass spectrometry/mass spectrometry
Posted 2007-05-23
2007-12-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
The Standard Appendix A and Appendix B is an informative annex.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
The standard by the China Academy of Inspection and Quarantine is responsible for drafting.
The main drafters of this standard. Peng Tao, Ann Juan, Guo Wei, Li Xiaojuan, spear Yan, Xu Li, Tang Ying Zhang, Chu Xiaogang.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Import and export of animal-derived foods Flumequine Residues
Detection Liquid chromatography - mass spectrometry/mass spectrometry
1 Scope
This standard specifies the Flumequine residues in foods of animal origin by liquid chromatography - mass spectrometry/mass spectrometry.
This standard applies to animal tissues, organs, eggs, milk, fish and shrimp Flumequine residues detected.
2 Sample Preparation and Storage
2.1 animal tissues, organs, fish and shrimp
Samples taken from the original representative sample of about 500g, with a full organization stamp mill crushed mix, are divided into two, respectively, into a clean container
As a sample, sealed and marked with tags. The sample was placed in -18 ℃ freezer stored.
2.2 Egg
Samples taken from the original representative sample of about 500g, peeled with a tissue after stirring thoroughly mixed stamp mill, are divided into two, respectively, into
Clean as a sample container, sealed and marked with tags. The sample was placed at 4 ℃ stored.
2.3 milk
Samples taken from the original representative sample of about 500g, with a stamp mill and mix well organized, are divided into two, respectively, into a clean container for
As a sample, sealed and marked with tags. The sample was placed at 4 ℃ stored.
In the sample preparation procedure, it should prevent sample contamination or the occurrence of the change of residue content.
3 Method summary
Sample extraction residue Flumequine with phosphate buffer, and acetonitrile, dried hexane to remove fat, after C18 solid-phase extraction (SPE), the use of
Liquid chromatography - mass spectrometry/mass spectrometry, external standard.
4 Reagents and materials
Unless otherwise noted, all reagents were of analytical grade, water is deionized water or equivalent purity.
4.1 acetonitrile. HPLC fractions.
4.2 hexane. HPLC fractions.
4.3 Methanol. HPLC fractions.
4.4 phosphoric acid.
4.5 potassium dihydrogen phosphate.
4.6 sodium hydroxide.
4.7 Ammonia. 25%.
4.8 formic acid. HPLC fractions.
4.9 ammonium acetate.
4.10 acetonitrile saturated with n-hexane. 100mL to 100mL acetonitrile was added n-hexane, followed by sufficient shaking, standing layer, the upper layer of acetonitrile
spare.
4.11 phosphate buffer (0.05mol/L, pH7.4 ± 0.2). exact Pipette 250mL0.2mol/L aqueous solution of potassium dihydrogen phosphate and
197.5mL0.2mol/L aqueous sodium hydroxide solution in 1L volumetric flask, add water 500mL, with phosphoric acid or sodium hydroxide to adjust
pH7.4 ± 0.2, water volume to 1L.
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