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SN/T 1627-2005 English PDF

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SN/T 1627-2005: Determination of merabolites of nitrofurans residues in animal origin food for import and export. HPLC-MS/MS
Status: Obsolete
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SN/T 1627-2005English719 Add to Cart 5 days [Need to translate] Determination of merabolites of nitrofurans residues in animal origin food for import and export. HPLC-MS/MS Obsolete SN/T 1627-2005

PDF similar to SN/T 1627-2005


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Basic data

Standard ID SN/T 1627-2005 (SN/T1627-2005)
Description (Translated English) Determination of merabolites of nitrofurans residues in animal origin food for import and export. HPLC-MS/MS
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard X22
Classification of International Standard 67.120.01
Word Count Estimation 18,115
Date of Issue 2005-08-18
Date of Implementation 2006-02-01
Issuing agency(ies) General Administration of Quality Supervision, Inspection and Quarantine of the People Republic of China
Summary This standard specifies the food of animal origin nitrofuran metabolite residues liquid chromatography mass spectrometry method. This standard applies to shrimp, chicken, honey, sausage nitrofuran metabolite residues.

SN/T 1627-2005: Determination of merabolites of nitrofurans residues in animal origin food for import and export. HPLC-MS/MS


---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 merabolites of nitrofurans residues in animal origin food for import and export. HPLC-MS/MS Book of the People's Republic of China Entry and Exit Inspection and Quarantine Import and export of nitrofurans in animal source foods Metabolite residue determination method High performance liquid chromatography tandem mass spectrometry Released on.2005-08-18 2006-02-01 implementation People's Republic The General Administration of Quality Supervision, Inspection and Quarantine issued

Foreword

Appendix A and Appendix B of this standard are informative annexes. This standard is proposed and managed by the National Certification and Accreditation Administration. This standard was drafted. Hebei Entry-Exit Inspection and Quarantine Bureau of the People's Republic of China. The main drafters of this standard. Wang Fengchi, Ma Zhendong, Guo Chunhai, Chen Ruichun, Dou Caiyun. This standard is the first industry standard for entry-exit inspection and quarantine. Import and export of nitrofurans in animal source foods Metabolite residue determination method High performance liquid chromatography tandem mass spectrometry

1 Scope

This standard specifies the method for the determination of nitrofuran metabolite residues in animal-derived foods by liquid chromatography-tandem mass spectrometry. This standard applies to the determination of nitrofuran metabolite residues in shrimp, chicken, honey, and casing.

2 Determination method

2.1 Method summary The protein-bound nitrofuran metabolite (see Appendix A) is hydrolyzed and freed in an acidic environment with o-nitrobenzene After formaldehyde was derivatized, it was extracted with ethyl acetate. After purification and concentration, it was measured by a liquid chromatography mass spectrometer. Quantification by external standard method. 2.2 Reagents and materials Unless otherwise specified, the reagents used were of analytical grade and the water was ultrapure water. 2.2.1 Acetonitrile. HPLC grade. 2.2.2 Methanol. HPLC grade. 2.2.3 Ethyl acetate. HPLC grade. 2.2.4 o-nitrobenzaldehyde. 2.2.5 Dimethyl sulfoxide. 2.2.6 anhydrous sodium sulfate. 650 ° C burning for 4h, cooled and stored in a closed container for use. 2.2.7 Hydrochloric acid solution. 0.125 mol/L. 2.2.8 Sodium hydroxide solution. 1 mol/L. 2.2.9 Sodium hydroxide solution. 0.1 mol/L. 2.2.10 Sodium chloride solution. 300g/L. 2.2.11 Hydrochloric acid solution. 1 mol/L. 2.2.12 Derivatization reagent. Weigh 100 mg of o-nitrobenzaldehyde in 12.5 mL of dimethyl sulfoxide, and use it now. 2.2.13 Constant volume solution. 0.1% aqueous acetic acid. acetonitrile. methanol 3.3.2 (volume fraction). 2.2.14 Nitrofuran metabolite standards. AOZ, AMOZ, AHD·HCl, SEM·HCl, purity ≥99.0%. 2.2.15 Standard stock solution. weigh nitrofuran metabolite standard AOZ, AMOZ10.0mg, AHD·HCl 13.2mg, SEM·HCl 14.9mg (accurate to 0.1mg), dissolved in methanol and transferred to a 20mL volumetric flask, determined with methanol The solution was allowed to reach a mark, and the concentration of the solution was 0.5 mg/mL, and it was stored at 4 ° C or lower. 2.2.16 Standard intermediate solution. separately absorb 1.0 mL of each standard stock solution of four nitrofuran metabolites, and dilute to 50 mL with methanol. The concentration was 10 μg/mL. 2.2.17 Standard working solution. Take 1.0 mL of standard intermediate solution, dilute to 100 mL with methanol, and the concentration is 0.1 μg/mL. 2.2.18 Calibration curve standard working solution. Dilute the standard working solution to the appropriate concentration to make the calibration curve, and prepare it when it is ready. 2.3 Instruments and equipment 2.3.1 Liquid chromatography mass spectrometer for secondary mass spectrometry analysis. 2.3.2 Electronic balance. 2.3.3 Ultrasonic cleaner.

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