SN/T 0641-2011 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 0641-2011	639	Add to Cart	3 days	Determination of crotoxyphos residues in meat and meat products for export. Gas chromatographic method	Obsolete
SN 0641-1997	559	Add to Cart	4 days	Method for the determination of crotoxyphos residues in meats and meat products for export	Obsolete

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GB/T 9959.1   SB/T 10381   SB/T 10294   SN/T 0568   SN/T 0645   SN/T 0639   

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Older Standard (superseded by this standard): SN 0641-1997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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