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