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SN/T 2917-2011: Determination of dimethomorph residues of foodstuffs for export
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Determination of dimethomorph residues of foodstuffs for export
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Basic data | Standard ID | SN/T 2917-2011 (SN/T2917-2011) | | Description (Translated English) | Determination of dimethomorph residues of foodstuffs for export | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.050 | | Word Count Estimation | 32,395 | | Date of Issue | 2011-05-31 | | Date of Implementation | 2011-12-01 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | National-Quality-Inspection-accreditation (2011) 291 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard provides food for export Dimethomorph residual liquid chromatography-mass spectrometry/mass spectrometry and gas chromatography-mass spectrometry. This standard is the first law applies to onions, garlic, spinach, peas, tomato, potatoes, apples, citrus, pork, liver, bovine kidney and milk acid morpholine residue testing and validation, the second method is suitable for snow peas, cabbage, fresh horseradish, radish, dehydrated onion, ginger, rice, beans, nuclear challenge, tea, pork, honey acid morpholine residue detection and confirmation. | SN/T 2917-2011: Determination of dimethomorph residues of foodstuffs for export---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 dimethomorph residues of foodstuffs for export
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Food exports dimethomorph Residue Detection
Issued on. 2011-05-31
2011-12-01 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 was drafted. People's Republic of China Henan Entry-Exit Inspection and Quarantine Yunnan People's Republic of China
Bureau, Chinese Academy of Inspection and Quarantine, People's Republic of China Shandong CIQ.
This standard is the first major law drafter. Guo Junfeng Yang Jizhou, Wang Su Fang, Peng Tao, Wei Wei, Zhang Shoujie.
The main drafters of this Standard Method II. Pengyun Xia, Ma Xiaogang, Wang Jianhua.
Food exports dimethomorph Residue Detection
1 Scope
This standard provides the food for export dimethomorph residues by liquid chromatography - mass spectrometry/mass spectrometry and gas chromatography - mass spectrometry
method.
This standard is the first law applies to onions, garlic, spinach, peas, tomatoes, potatoes, apples, oranges, pork, liver, kidney and milk cattle enoyl
Morpholino residues testing and validation, the second method is suitable for snow peas, cabbage, fresh horseradish, radish, dehydrated onion, ginger, rice, kidney beans, walnuts,
Pu'er tea, pork, honey dimethomorph residues detection and confirmation.
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. For undated references, the latest edition (including any amendments) applies to this document.
Laboratory use specifications and test methods GB/T 6682 Analysis
3 first normal liquid chromatography - mass spectrometry/mass spectrometry
3.1 Method summary
Samples were extracted with acetonitrile by dispersive SPE purification, liquid chromatography - mass spectrometry/mass spectrometry, external standard.
3.2 Reagents and materials
Unless otherwise specified, the reagents were of analytical grade water as a water GB/T 6682 regulations.
3.2.1 acetonitrile. liquid chromatography.
3.2.2 n-hexane. liquid chromatography, saturated with acetonitrile before use.
3.2.3 formic acid. liquid chromatography.
3.2.4 sodium chloride.
3.2.5 anhydrous magnesium sulfate. After grinding bake 4h at 650 ℃, after the dryer to cool reserve.
3.2.6 solid phase extraction sorbents. PSA (primarysecondaryamine, par amine).
3.2.7 solid phase extraction sorbents. C18 type.
3.2.8 solid phase extraction sorbents. graphitic carbon adsorbent GCB (graphitizedcarbonblack).
3.2.9 formic acid solution. 0.1% (volume fraction). 1mL diluted formic acid (3.2.3) with water to 1000mL.
3.2.10 0.1% formic acid - acetonitrile. (64, volume ratio). 0.1% formic acid 6 volumes (3.2.9) and 4 volumes of acetonitrile mixture
Even after use.
3.2.11 dimethomorph standard substance (dimethomorph, CAS number. 110488-70-5 suppliers. C21H22ClNO4). purity of greater than
Equal to 98%.
3.2.12 dimethomorph standard stock solution. Weigh accurately dimethomorph standards 10.0mg, dissolved in methanol and set the volume to 100mL, concentration
To 100mg/L. 0 ~ 4 ℃ save.
3.2.13 dimethomorph matrix standard working solution. According to the need to draw a certain amount of stock standard solution (3.2.12) with the blank sample matrix solution
Diluted to the appropriate concentration of standard working solution, preparation before use.
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