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Determination of multiple ether herbicides sesidues in foods for export. GC-MS/NCI method
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Basic data
| Standard ID | SN/T 3541-2013 (SN/T3541-2013) |
| Description (Translated English) | Determination of multiple ether herbicides sesidues in foods for export. GC-MS/NCI method |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | X04 |
| Classification of International Standard | 67.050 |
| Word Count Estimation | 28,267 |
| Regulation (derived from) | AQSIQ notification issued in 2013 on the first batch of 179 entry-exit inspection and quarantine of industry standards; industry standard for filing Notice 2013 No. 9 (No. 165 overall) |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This standard specifies the food benzene ether herbicides by gas chromatography - negative chemical ionization - mass spectrometry methods. This standard applies to the determination of rice, beans, spinach, green onions, peppers, strawberries, sweet peas |
SN/T 3541-2013: Determination of multiple ether herbicides sesidues in foods for export. GC-MS/NCI method
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Determination of multiple ether herbicides sesidues in foods for export. GC-MS/NCI method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
A variety of food for export ether herbicides
Residue Detection
Gas chromatography - negative chemical ionization - mass spectrometry
GC-MS/NCImethod
Issued on. 2013-03-01
2013-09-16 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 Jiangsu Entry-Exit Inspection and Quarantine Bureau.
Drafters of this standard. Shen Wei Jian, Liu Han, Zhao Yun increased, Shen Chong-yu, I can Yao, Gui Xi Wen, Wu Bin, Zhang Rui.
A variety of food for export ether herbicides
Residue Detection
Gas chromatography - negative chemical ionization - mass spectrometry
1 Scope
This standard specifies the benzene ether herbicides in foods by gas chromatography - negative chemical ionization - mass spectrometry methods.
This standard applies to rice, soybeans, spinach, green onions, peppers, strawberries, sweet peas, green tea, dragon shrimp, eel, pork, honey and other 12 kinds of food
Determination of product ether herbicide residues and confirmation.
2 Method summary
Samples were extracted with hexane saturated with acetonitrile (containing 1% acetic acid) to extract, purify dispersive SPE, gas chromatography - negative chemical ionization mass
Spectroscopy measurement and validation, external standard.
3 Reagents and materials
Unless otherwise specified, the reagents were of analytical grade, water is deionized water.
3.1 acetonitrile. chromatography.
3.2 hexane. chromatographically pure.
3.3 acetone. chromatography.
3.4 acetic acid.
3.5 anhydrous magnesium sulfate.
3.6 anhydrous sodium acetate.
3.7 extraction solvent (containing 1% glacial acetic acid with hexane saturated with acetonitrile). add 10mL to 990mL of glacial acetic acid (prior to use
Hexane, saturated) aqueous acetonitrile.
3.8 Standard substance. trifluoroacetic pendimethalin ether (Fluorodifen, CAS number. 15457-05-3), oxyfluorfen (Oxyfluorfen, CAS number.
42874-03-3), nitrofen (Nitrofen, CAS number. 1836-75-5), aclonifen (Aclonifen, CAS number. 74070-46-5), pyraflufen
(Pyraflufen-ethyl, CAS number. 129630-19-9), quinoxyfen (Quinoxyfen, CAS number. 124495-18-7), Cellulose ether
(Ethoxyfen-ethyl, CAS number. 131086-42-5), methoxy nitrofen (Chlomethoxyfen, CAS number. 32861-85-1), except carboxymethyl
Grass ether (Bifenox, CAS number. 42576-02-3), lactofen (Lactofen, CAS number. 77501-63-4) and acetic fluoroglycofen (Fluoro-
glycofen-ethyl, CAS number. 77501-90-7). purity not less than 98.0%.
3.9 various pesticide standard stock solution. accurately weighed amount of each of the above standards, diluted with acetone formulated to 1.00mg/mL single
Standard stock solution, stored at 4 ℃ (valid for 12 months).
3.10 mixed standard stock solution. accurately Pipette respectively the single-standard stock solution 0.5mL in 10mL volumetric flask, diluted with acetone
Mixed standard stock solution made of 50μg/mL, and stored at 4 ℃ (valid for 6 months).
3.11 mixed standard working solution. Dilute with acetone needed a standard working solution of appropriate concentration, at 4 ℃ save (valid for
1 month).
3.12 GCB packing. 40μm.
3.13 PSA (N-2-aminoethyl) packing. 40μm.
3.14 C18 packing. 40μm.
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