SN/T 2114-2008 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2114-2008	519	Add to Cart	3 days	Determination of abamectin residues in fruit and vegetable for import and export. LC method	Obsolete

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Basic data

Standard ID: SN/T 2114-2008 (SN/T2114-2008)
Description (Translated English): Determination of abamectin residues in fruit and vegetable for import and export. LC method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: B31
Classification of International Standard: 67.050; 67.080.01
Word Count Estimation: 13,148
Date of Issue: 2008-09-04
Date of Implementation: 2009-03-16
Regulation (derived from): Industry standard filing Notice No. 11 of 2008
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the fruit and vegetables avermectin detection of sample preparation and liquid chromatography detection methods. This standard applies to apples and spinach avermectin residues detected. Other fruits and vegetables can refer to this standard.

SN/T 2114-2008: Determination of abamectin residues in fruit and vegetable for import and export. LC 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 abamectin residues in fruit and vegetable for import and export.LC method Exit inspection and quarantine industry standard book People's Republic of China Import and export of fruits and vegetables avermectin residues Liquid chromatography detection methods Posted 2008-09-04 2009-03-16 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

The Standard Appendix A, Appendix B 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 Shandong CIQ is responsible for drafting. Drafters of this standard. Li Li, Li Jinjiang, Li Pei warm. This standard is the first release of the entry-exit inspection and quarantine industry standards. Import and export of fruits and vegetables avermectin residues Liquid chromatography detection methods

1 Scope

This standard specifies the sample preparation and liquid chromatography (HPLC) method for fruits and vegetables in avermectin detection. This standard applies to apples and spinach avermectin residues detected. Other fruits and vegetables can refer to this standard.

2 Sample Preparation and Storage

2.1 Sample Preparation The samples taken shrinking separated 1kg, take the edible part, by the organization stamp mill crushed, divided into two, loaded into a clean container, as a sample Sealed and marked with tags. 2.2 Sample preservation The sample was stored at less -18 ℃. In the course of sampling and sample preparation operation, should prevent sample contamination or the occurrence of the change of residue content.

3 Method summary

Avermectin sample extraction with acetone, dried and concentrated, purified by SPEC18 column and eluted with methanol. The eluate was concentrated, fixed HPLC content, after filtration, equipped with a UV detector and external standard.

4 Reagents and materials

Unless otherwise specified, all reagents were of analytical grade, water is deionized water. 4.1 acetone. 4.2 Methanol. chromatographically pure. 4.3 avermectin standard. purity ≥96.0%. 4.4 avermectin standard stock solution. Weigh 0.1g (accurate to 0.0002g) avermectin standard in 100mL flask with methanol Dissolved and to volume. Preparation of a concentration of 1.0mg/mL standard stock solution. 4.5 avermectin standard working solution. Pipette the appropriate amount of avermectin stock standard solution as necessary, diluted to the appropriate concentration of the standard methanol Working fluid. Standard working solution preparation required once a week. 5. Apparatus 5.1 High performance liquid chromatograph. equipped with a UV detector. 5.2 Organization mashed machines. 5.3 oscillator. 5.4 rotary evaporator. 5.5 SPE. SPEC18 Specifications. 60mg/3mL; before use 5mL methanol and 5mL water activation.

6 measuring step

6.1 Extraction Weigh a sample of about 20g (accurate to 0.1g) in 100mL stoppered Erlenmeyer flask, 50mL acetone and shaken on a shaker for 0.5h ......

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