SN/T 1624-2009 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 1624-2009	719	Add to Cart	3 days	Determination of pyrimethanil, mepanipyrim, myclobutanil and azoxystrobin residues in foods for import and export-GC-MS method	Obsolete
SN/T 1624-2005	879	Add to Cart	6 days	Inspection of pyrimethanil, mepanipyrim, myclobutanil and azoxystrobin residues in vegetable and fruit for import and export	Obsolete

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Basic data

Standard ID: SN/T 1624-2009 (SN/T1624-2009)
Description (Translated English): Determination of pyrimethanil, mepanipyrim, myclobutanil and azoxystrobin residues in foods for import and export-GC-MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: B31
Classification of International Standard: 67.080
Word Count Estimation: 18,121
Date of Issue: 2009-07-07
Date of Implementation: 2010-01-16
Older Standard (superseded by this standard): SN/T 1624-2005
Regulation (derived from): National Quality Inspection [2009] No. 290
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the method of sample preparation and storage conditions as well as cereals, vegetables, fruits, nuts, tea, livestock, poultry, aquatic products, bee products pyrimethanil, mepanipyrim, myclobutanil, azoxystrobin residues the amount of test gas chromatography mass spectrometry. This standard applies to rice, eggplant, apples, chestnuts, tea, beef, chicken, fish, honey pyrimethanil, mepanipyrim, myclobutanil, azoxystrobin residues.

SN/T 1624-2009: Determination of pyrimethanil, mepanipyrim, myclobutanil and azoxystrobin residues in foods for import and export-GC-MS 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 pyrimethanil, mepanipyrim, myclobutanil and azoxystrobin residues in foods for import and export-GC-MS method Exit inspection and quarantine industry standard book People's Republic of China Instead of the SN/T 1624-2005 Imported and exported food pyrimethanil, mepanipyrim, myclobutanil, Detection azoxystrobin residues Gas chromatography - mass spectrometry Posted 2009-07-07 2010-01-16 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

Instead of the standard SN/T 1624-2005 "import and export of vegetables and fruits pyrimethanil, mepanipyrim, myclobutanil and azoxystrobin residues method". This standard compared with SN/T 1624-2005, the main changes are as follows. --- Detection matrix consists of four to nine species; --- Removed sample portion; --- Extraction and purification process depending on the substrate for the corresponding change. 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 Exit Inspection and Quarantine of Hebei, Liaoning, People's Republic of China Exit Inspection and Quarantine, the Chinese people People's Republic of Tianjin Entry-Exit Inspection and Quarantine Inner Mongolia, People's Republic of China drafted. The main drafters of this standard. Guo Chunhai, Gu Haitao, Wang Fengchi, Chenrui Chun, Duan Wenzhong, Feng Wei, Lin Anqing, Li Gang. This standard was first released in 2005, this is the first revision. Imported and exported food pyrimethanil, mepanipyrim, myclobutanil, Detection azoxystrobin residues Gas chromatography - mass spectrometry

1 Scope

This standard specifies the sample preparation and storage conditions as well as in cereals, vegetables, fruits, nuts, tea, livestock, poultry, aquatic products, bee Pyrimethanil, mepanipyrim, myclobutanil, azoxystrobin residues by gas chromatography - mass spectrometry. This standard applies to rice, eggplant, apples, chestnuts, tea, beef, chicken, fish, honey pyrimethanil, mepanipyrim, myclobutanil, azoxystrobin Determination of residues.

2 Method summary

With acetone or ethyl acetate, acetone and aqueous sodium chloride samples residues of pyrimethanil, mepanipyrim, myclobutanil, azoxystrobin, menses Liquid extraction column and GCB/amino column combination, purified by gas chromatography - mass spectrometry in selected ion detection, external standard.

3 Reagents and materials

Unless otherwise specified, reagents were of analytical grade, water is distilled or deionized water. 3.1 acetone. pesticide grade. 3.2 ethyl acetate. 3.3 acetonitrile. HPLC grade. 3.4 toluene. 3.5 n-hexane. 3.6 sodium chloride. 3.7 anhydrous sodium. Burning 4h at 650 ℃, store in a sealed container in the back. 3.8 sodium chloride solution (300g/L). Weigh 300g of sodium chloride dissolved in distilled water and dilute to 1000mL. 3.9 acetonitrile - toluene (3 + 2, volume ratio). Take 20mL of toluene and 30mL acetonitrile and mix. 3.10 acetonitrile - toluene (3 + 1, volume ratio). Take 30mL and 10mL toluene and acetonitrile, mix well. 3.11 acetone - n-hexane (1 + 1, volume ratio). Take 50mL acetone and 50mL hexane, mix well. 3.12 acetonitrile saturated with n-hexane. 3.13 hexane saturated acetonitrile. 3.14 GCB column/amino column composite column. 500mg, 6mL; or GCB column (500mg, 6mL) and amino column (500mg, 3mL) from top to bottom in tandem. 3.15 pyrimethanil standard. Formula, C12H13N3; CAS No. 53112-28-0; purity ≥99%. 3.16 mepanipyrim standard. Formula, C14H13N3; CAS No. 110235-47-7; purity ≥99%. 3.17 myclobutanil Standard. molecular formula, C15H17ClN4; CAS No. 88671-89-0; purity ≥99%. 3.18 azoxystrobin standards. Formula, C22H17N3O5; CAS No. 131860-33-8; purity ≥99%. 3.19 pyrimethanil, mepanipyrim, myclobutanil, azoxystrobin standard solution. Accurately weigh an adequate amount of pyrimethanil, mepanipyrim, myclobutanil, azoxystrobin standard Product with acetone formulated to 100μg/mL standard stock solution, the following 5 ℃ storage, use within 6 months. Diluted to the appropriate concentration with acetone The standard working solution below 5 ℃ storage, use within 3 months. ......

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