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Determination of ethoxyquin residues in foodstuffs of animal origin. HPLC method
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SN/T 2539-2010
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Basic data | Standard ID | SN/T 2539-2010 (SN/T2539-2010) | | Description (Translated English) | Determination of ethoxyquin residues in foodstuffs of animal origin. HPLC method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X22 | | Classification of International Standard | 67.120.01 | | Word Count Estimation | 20,222 | | Date of Issue | 2010-03-02 | | Date of Implementation | 2010-09-16 | | Regulation (derived from) | National Quality Inspection (2010) 98 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the pork, liver, kidney, chicken, fish, eggs, honey, milk ethoxyquin residues liquid chromatography and high performance liquid chromatography mass spectrometry confirmatory method. This standard applies to pork, liver, kidney, chicken, fish, eggs, honey, milk ethoxyquin residues chromatography and confirmation. | SN/T 2539-2010: Determination of ethoxyquin residues in foodstuffs of animal origin. HPLC 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 ethoxyquin residues in foodstuffs of animal origin.HPLC method
Exit inspection and quarantine industry standard book People's Republic of China
Animal Food ethoxyquin residues
Determination of HPLC
Issued on. 2010-03-02
2010-09-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
The Standard Appendix A, Appendix B and Appendix C 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 Hunan Exit Inspection and Quarantine.
The main drafters of this standard. Yanhong Fei, Zhang Ying, Sun Fei, Hu Yudong, Mr Wong, Fushan Liang, Li Yongjun, Wang Meiling.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Animal Food ethoxyquin residues
Determination of HPLC
1 Scope
This standard specifies the liquid chromatography and pork, liver, kidney, chicken, fish, eggs, honey, milk ethoxyquin residues
HPLC - MS confirmation methods.
This standard applies to pork, liver, kidney, chicken, fish, eggs, honey, milk ethoxyquin residues measured and confirmed.
2 Method summary
After the sample is added a solution of sodium carbonate and acetone shaking extraction using n-hexane liquid - liquid extraction distribution, volume was concentrated after the extraction, distribution
HPLC fluorescence detector, external standard, high performance liquid chromatography - tandem mass spectrometry confirmed.
3 Reagents and materials
Except where noted, all reagents were of analytical grade, double distilled water.
3.1 acetone. HPLC grade.
3.2 hexane. HPLC grade.
3.3 acetonitrile. HPLC grade.
3.4 sodium carbonate.
Ammonium acetate 3.5. HPLC grade.
3.6 sodium carbonate solution (100g/L). Weigh accurately 100g of sodium carbonate (3.4) adding an appropriate amount of water in a beaker was dissolved, transferred to a 1L capacity
Bottle to the mark, shake.
3.7 ammonium acetate (20mmol/L). Weigh 1.54g of ammonium acetate (3.5), was dissolved in 1L of water.
3.8 ethoxyquin standard substance (ethoxyquin, CAS number. 91-53-2, C14H19NO). not less than 98.0% purity.
3.9 ethoxyquin standard stock solution. accurately weighed amount of standard, diluted formulated into standard stock solution 100μg/mL of acetonitrile, 0 ℃ ~
4 ℃ under dark place.
3.10 ethoxyquin standard working solution. intermediate standard solution Pipette a volume with acetonitrile and serially diluted to the appropriate concentration according to testing needs
Standard working solution. Standard working solution for an existing service is used.
4 instruments and equipment
4.1 High performance liquid chromatograph. equipped with a fluorescence detector (FLD).
4.2 high performance liquid chromatography - tandem mass spectrometry. equipped with electrospray ionization source (ESI).
4.3 Organization mashed machines.
4.4 Centrifuge. 6000r/min.
4.5 Vortex device.
4.6 rotary evaporator.
4.7 Analysis of balance. a sense of volume and 0.0001g 0.01g.
4.8 nitrogen concentrators.
4.9 Organic filter. 0.45μm.
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