SN/T 0641: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| SN/T 0641-2011 | English | 639 |
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Determination of crotoxyphos residues in meat and meat products for export. Gas chromatographic method
| Obsolete |
SN/T 0641-2011
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| SN 0641-1997 | English | 559 |
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Method for the determination of crotoxyphos residues in meats and meat products for export
| Obsolete |
SN 0641-1997
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PDF similar to SN/T 0641-2011
Basic data | Standard ID | SN/T 0641-2011 (SN/T0641-2011) | | Description (Translated English) | Determination of crotoxyphos residues in meat and meat products for export. Gas chromatographic method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X22 | | Word Count Estimation | 16,177 | | Date of Issue | 2011-05-31 | | Date of Implementation | 2011-12-01 | | Older Standard (superseded by this standard) | SN 0641-1997 | | Regulation (derived from) | National-Quality-Inspection-accreditation (2011) 291 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the method for determination of export meat and butene phosphorus residues in meat products. This standard applies to exports of pork, determination sausage and luncheon meat and other meat and meat products butene phosphorus residues. | SN/T 0641-2011: Determination of crotoxyphos residues in meat and meat products for export. Gas chromatographic 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 crotoxyphos residues in meat and meat products for export. Gas chromatographic method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Replacing SN 0641-1997
Determination of export meat and meat products butene phosphorus residues
Gas chromatography
Issued on. 2011-05-31
2011-12-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces SN 0641-1997 "butene phosphorus residues in meat and meat products for export."
This standard compared with SN 0641-1997 main changes are as follows.
--- Instrument for pre-processing method and conditions were improved to reduce the detection limit;
--- Omitted sampling procedure.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Shanghai Entry-Exit Inspection and Quarantine Bureau.
The main drafters of this standard. Iraq Xiong Hai, Li Han, Yang Huiqin, Guo Dehua, Zhu Jian.
This standard replaces the standards previously issued as follows.
--- SN 0641-1997.
Determination of export meat and meat products butene phosphorus residues
Gas chromatography
1 Scope
This standard specifies the method for determination of export meat and butene phosphorus residues in meat products.
This standard applies to meat and determination of phosphorus residues butene export pork, sausage and luncheon meat and other meat products.
2 Method summary
Sample residual phosphorus butene by cyclohexane - ethyl acetate mixed solvent extraction, and the extract by gel permeation chromatography purification, distribution flame
Gas chromatograph photometric detector, external standard. If necessary, by gas chromatography - mass spectrometry confirmed.
3 reagent material
Unless otherwise indicated, the reagents used were of analytical grade, water is distilled water.
3.1 acetone. chromatography.
3.2 Cyclohexane. chromatography.
3.3 ethyl acetate. chromatography.
3.4 cyclohexane - ethyl acetate (1 1, volume ratio).
3.5 anhydrous sodium. 650 ℃ burning 4h, stored in a sealed container in the back.
Phosphorus standard 3.6-butene (crotoxyphos, molecular formula. C14H19O6P, CAS Number. 7700-17-6). Purity ≥99%.
3.7 butene phosphorus standard solution. Accurately weigh an adequate amount of phosphorus-butene standards, formulated in acetone to a concentration of about 1.0mg/mL of standard stock
Was prepared, and then the working solution diluted with acetone, if necessary appropriate concentration standard. Standard stock solution at 0 ~ 4 ℃ refrigerator to save Dates
For 12 months, working standard solution at 0 ~ 4 ℃ stored in a refrigerator for a period of six months.
4 instruments and equipment
4.1 Gas chromatograph. flame photometric detector with phosphorus filter (526nm).
4.2 Gel permeation chromatography. with unit pump, fraction collector.
4.3 centrifuge. speed is greater than 3000r/min.
4.4 Electronic balance. a sense of volume to the nearest 0.0001g.
4.5 homogenizer.
4.6 rotary evaporator.
4.7 concentrated bottle. 100mL.
4.8 The organic phase microporous membrane. 0.45μm.
4.9 anhydrous sodium sulfate column. column length 7cm, the inner diameter of the cylindrical funnel built about 2cm 3cm anhydrous sodium sulfate.
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