SN/T 2561-2010 English PDF

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 2561-2010	RFQ	ASK	5 days	Determination of pyridine pesticides residues in foodstuffs for import and export. LC-MS/MS	Obsolete

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Basic data

Standard ID: SN/T 2561-2010 (SN/T2561-2010)
Description (Translated English): Determination of pyridine pesticides residues in foodstuffs for import and export. LC-MS/MS
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X04
Classification of International Standard: 67.050
Word Count Estimation: 29,242
Date of Issue: 2010-05-27
Date of Implementation: 2010-12-01
Quoted Standard: GB/T 6682
Regulation (derived from): National Quality Inspection [2010] No. 290
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the food imidacloprid, acetamiprid, imazethapyr, metribuzin fluoride pyridine, boscalid seven kinds of pesticide residues in pyridine sample preparation and liquid chromatography mass spectrometry/mass spectrometry. This standard applies to rice, wheat, potatoes, spinach, citrus, walnut, tea, pork, fish, liver and milk imidacloprid, acetamiprid, imazethapyr, metribuzin fluoride pyridine, boscalid, bentazone pyridine and pyridine dithiopyr residues and confirmation.

SN/T 2561-2010: Determination of pyridine pesticides residues in foodstuffs for import and export. LC-MS/MS

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Determination of pyridine pesticides residues in foodstuffs for import and export.LC-MS/MS People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of imported and exported food pyridine pesticide residues Liquid chromatography - mass spectrometry/mass spectrometry export-LC-MS/MS Issued on. 2010-05-27 2010-12-01 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 is proposed and managed by the National Certification and Accreditation Administration Committee. This standard by the People's Republic of China Hunan Exit Inspection and Quarantine is responsible for drafting. The main drafters of this standard. Mei-ling, Zhang Ying, Wang Xiangxian, Mr Wong, Yan Hongfei, Li Yongjun, Fushan Liang, Zhu Shaohua. Determination of imported and exported food pyridine pesticide residues Liquid chromatography - mass spectrometry/mass spectrometry

1 Scope

This standard specifies the foods imidacloprid, acetamiprid, imazethapyr, 7 pyridine pesticide residues haloxydine ketone, boscalid, such as testing of Sample preparation and liquid chromatography - mass spectrometry/mass spectrometry. This standard applies to rice, wheat, potatoes, spinach, citrus, walnuts, tea, pork, fish, liver and milk imidacloprid, Amidine, imazethapyr, haloxydine ketone, boscalid, pyridine and thiophene grass dithiopyr pyridine residues measured and confirmed.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member, undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis

3 Method summary

Pesticide residues in sample After salting acetonitrile extract, the extract was GCB or C18 SPE cartridges, eluted with Liquid chromatography - mass spectrometry/mass spectrometry detection and confirmation, external standard.

4 Reagents and materials

Except where noted, all reagents were of analytical grade water as a water line with GB/T 6682 regulations. 4.1 acetonitrile. HPLC grade. 4.2 Methanol. HPLC grade. 4.3 toluene. 4.4 acetic acid. 4.5 sodium chloride. 4.6 anhydrous sodium sulfate. After burning 650 ℃ 4h, placed in the dryer set aside. 4.7 0.1% acetic acid solution. Take 1mL acetic acid, diluted with water and dilute to 1000mL. 4.8 Methanol - water (11 volume). Measure 100mL methanol, 100mL water was added, mixing spare. 4.9 Toluene - acetonitrile acidic solution. Measure 100mL of toluene, was added 300mL of acetonitrile and 4mL acetic acid, mixing spare. 4.10 imidacloprid, acetamiprid, imazethapyr, haloxydine ketone, boscalid, pyridine and thiophene grass dithiopyr pyridine standard substance. purity greater than or equal to 98%, See Appendix A. 4.11 standard stock solution. namely, accurately weighed amount of the above standards, prepared in methanol standard solution 1.0mg/mL, and at 4 ℃ Stored. 4.12 mixed formulation intermediate standard solution. take the right amount of the above standard stock solution with methanol formulated as a mixed standard solution 10μg/mL, and 4 ℃ stored in the dark. Preparation of standard solution of 4.13. draw an appropriate amount of mixed standard intermediate solution, with a blank sample matrix formulated in an appropriate concentration of the standard work ......

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