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SN/T 1926-2007: Determination of diaveridine residue in foodstuffs of animal origin for import and export
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 1926-2007 | English | 639 |
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Determination of diaveridine residue in foodstuffs of animal origin for import and export
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SN/T 1926-2007
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Basic data | Standard ID | SN/T 1926-2007 (SN/T1926-2007) | | Description (Translated English) | Determination of diaveridine residue in foodstuffs of animal origin for import and export | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | C53 | | Classification of International Standard | 67.020 | | Word Count Estimation | 20,271 | | 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 enemy bacteria in foods of animal origin net residual amount of sample preparation, high performance liquid chromatography and liquid chromatography mass spectrometry/mass spectrometry confirmatory method. This standard applies to poultry and poultry tissues Net enemy bacteria residue testing. | SN/T 1926-2007: Determination of diaveridine residue in foodstuffs of animal origin for import and export
---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 diaveridine residue in foodstuffs of animal origin for import and export
Exit inspection and quarantine industry standard book People's Republic of China
Import and export of food of animal origin in the net residual amount of captafol
Detection method
Posted 2007-05-23
2007-12-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard Annex A, Annex B and Annex C is informative appendix.
This standard is proposed and managed by the National Certification and Accreditation Administration
This standard was drafted. Exit Inspection and Quarantine of Heilongjiang People's Republic of China, People's Republic of China Liaoning Entry-Exit Inspection and
Quarantine Bureau.
The main drafters of this standard. Yang Chang-chih, Hong celebrate, Linwei Xuan, Liu, Wang Wei, Wang Hongwei.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Import and export of food of animal origin in the net residual amount of captafol
Detection method
1 Scope
This standard specifies the food of animal origin enemy bacteria net residual amounts of sample preparation, high performance liquid chromatography and liquid chromatography - mass spectrometry/mass spectrometry confirmation
method.
This standard applies to poultry and poultry tissues enemy bacteria net residual amount detection.
2. Sample Preparation and Storage
Remove all of the original sample from a representative sample of about 500g, with the organization stamp mill crushed sufficiently uniform, were divided into two, were charged Jie
Net as a sample container, sealed and marked with tags. In the sample preparation procedure, it should prevent sample contamination or the occurrence of the change of residue content.
The sample was stored at -18 ℃ refrigerator.
3 Method summary
Sample remaining enemy bacteria net extracted with dichloromethane under basic conditions, and the extract was concentrated and acidified with n-hexane, ethyl acetate
And cation exchange SPE column. High performance liquid chromatograph residue was dissolved in dilute hydrochloric acid, equipped with a UV detector and external standard
the amount. If necessary, by liquid chromatography - mass spectrometry confirmed, confirmed see Appendix A and Appendix B.
4 Reagents and materials
Unless otherwise specified, all reagents were of analytical grade, water is deionized water.
4.1 methanol. liquid chromatography.
4.2 hexane. liquid chromatography.
4.3 dichloromethane. liquid chromatography.
4.4 acetonitrile. liquid chromatography.
4.5 ethyl acetate. liquid chromatography.
4.6 Potassium hydroxide. pure class distinctions.
4.7 potassium dihydrogen phosphate.
4.8 ammonium acetate.
4.9 anhydrous sodium sulfate. After burning 650 ℃ 4h, placed in the dryer set aside.
4.10 hydrochloride. pure class distinctions.
4.11 ammonia. 25% to 28%.
2% 4.12 ammonia solution. aqueous ammonia + water (98 + 2, volume ratio).
4 4.13% methanol solution of aqueous ammonia. methanol + ammonia + water (50 + 46 + 4, volume ratio).
4.14 8% solution of ammonia in methanol. methanol + aqueous ammonia (92 + 8, by volume).
4.15 hydrochloric acid solution. 0.1mol/L. Take 9mL hydrochloric acid dissolved in 1000mL water.
4.16 potassium hydroxide solution. 2mol/L. Of potassium hydroxide dissolved in 112.2g take 1000mL water.
4.17 potassium dihydrogen phosphate. 0.02mol/L. Take 2.72g potassium dihydrogen phosphate dissolved in 900mL of water with phosphoric acid to adjust the pH to 3.0,
Finally diluted with water to 1000mL.
4.18 Net enemy bacteria standards. purity ≥99%.
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