SN/T 1977-2007 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 1977-2007	519	Add to Cart	3 days	Determination of fenpyroximate residues in fruit and vegetable for import and export. HPLC method	Obsolete

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Basic data

Standard ID: SN/T 1977-2007 (SN/T1977-2007)
Description (Translated English): Determination of fenpyroximate residues in fruit and vegetable for import and export. HPLC method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 13,181
Date of Issue: 2007-08-06
Date of Implementation: 2008-03-01
Regulation (derived from): National-accreditation-Science [2011] 63
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the fruits, vegetables Fenpyroximate residues HPLC method. This standard applies to hair citrus, cabbage Fenpyroximate residues detected.

SN/T 1977-2007: Determination of fenpyroximate residues in fruit and vegetable for import and export. 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 fenpyroximate residues in fruit and vegetable for import and export.HPLC method Exit inspection and quarantine industry standard book People's Republic of China Import and export of fruits and vegetables FENPYROXIMATE Residues HPLC detection method Posted 2007-08-06 2008-03-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

Appendix A of this standard is an informative annex. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard by the People's Republic of China Anhui CIQ is responsible for drafting. The main drafters of this standard. screen Zheng Sheng spin, Huyan Yun, Zhang Lei, SUN Hao, Zhu Xu dream. This standard is the first release of the entry-exit inspection and quarantine industry standards. Import and export of fruits and vegetables FENPYROXIMATE Residues HPLC detection method

1 Scope

This standard specifies the HPLC method fruits, vegetables FENPYROXIMATE residues. This standard applies to citrus, cabbage FENPYROXIMATE residues detected.

2 Method summary

Samples extracted with methanol, n-hexane was back-extracted neutral alumina column purification to UV detector with high performance liquid chromatography detection, external standard Statutory amount.

3 Reagents and materials

Unless otherwise indicated, all reagents were of analytical grade, double distilled water. 3.1 Methanol. chromatographically pure. 3.2 hexane. chromatographically pure. 3.3 ethyl acetate. chromatography. 3.4 over anhydrous sodium. 650 ℃ burning 4h, cooled in a desiccator to room temperature and stored in a sealed bottle for use. 3.5 NaCl. 10%. 3.6 FENPYROXIMATE standards (Fenpyroximate, CAS.NO. 111812-58-9). purity greater than or equal to 99%. 3.7 FENPYROXIMATE standard stock solution. accurately weighed amount FENPYROXIMATE standard (3.6), formulated with acetonitrile to a concentration of 100μg/mL standard Stock solution. Needed with acetonitrile diluted to the appropriate concentration of the working standard solution. 3.8 neutral alumina SPE. 1000mg, 3mL.

4 instruments and equipment

4.1 high performance liquid chromatography with UV detection. 4.2 homogenizer. 5000r/min. 4.3 Centrifuge. 4000r/min. 4.4 rotary evaporator. 4.5 nitrogen blowing instrument. 4.6 Vortex device.

5 Sample Preparation and Storage

5.1 Sample Preparation Take representative samples of about 500g, whichever is the edible part of a large sample of individuals must first chopped into uniform high-speed organization stamp mill crushed, loaded Into a clean container, sealed, marked and labeled. 5.2 Sample preservation Samples stored at 0 ℃ ~ 4 ℃. In the sample preparation procedure, it should prevent sample contamination or the occurrence of the change of residue content. ......

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