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Determination of fipronil residues in food for import and export. GC-MS method
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Basic data
| Standard ID | SN/T 1982-2007 (SN/T1982-2007) |
| Description (Translated English) | Determination of fipronil residues in food for import and export. GC-MS method |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | X04 |
| Classification of International Standard | 67.050 |
| Word Count Estimation | 16,180 |
| Date of Issue | 2007-08-06 |
| Date of Implementation | 2008-03-01 |
| Regulation (derived from) | National-accreditation-Science [2011] 63 |
| Issuing agency(ies) | General Administration of Customs |
| Summary | This standard specifies the food fipronil residue detection and sample preparation, gas chromatography mass spectrometry and confirmatory methods. This standard applies to spinach, lotus root, strawberries, peanuts, chicken, pork, cod, honey, chestnuts, tea and soy sauce fipronil residues and confirmation. |
SN/T 1982-2007: Determination of fipronil residues in food for import and export. GC-MS method
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Determination of fipronil residues in food for import and export.GC-MS method
Exit inspection and quarantine industry standard book People's Republic of China
Imported and exported food Fipronil Residue Detection
Gas chromatography - mass spectrometry
Posted 2007-08-06
2008-03-01 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
The Standard Appendix A and Appendix B are informative appendices.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard is mainly drafted by. People's Republic of China Shandong Exit Inspection and Quarantine, Hunan People's Republic of China Entry-Exit Inspection and
Quarantine Bureau, People's Republic of China Jiangsu CIQ.
The main drafters of this standard. Wang Jianhua, Li Jie, Huang Zhiqiang, Shen Chong Yu, Cai hair, Sunzhong Song, Wang Jing Tong.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Imported and exported food Fipronil Residue Detection
Gas chromatography - mass spectrometry
1 Scope
This standard specifies the foods Fipronil Residue testing and sample preparation, gas chromatography - mass spectrometry and confirmation methods.
This standard applies to spinach, measuring lotus root, strawberries, peanuts, chicken, pork, cod, honey, chestnut, tea and soy sauce Fipronil Residues
Set and confirmed.
2 Method summary
The sample was extracted with acetonitrile, hexane liquid-liquid partition and primary secondary amine (PSA) solid phase extraction (SPE), gas chromatography - negative chemical ionization
Mass spectrometry, external standard.
3 Reagents and materials
Unless otherwise specified, the reagents were of analytical grade, double distilled water.
3.1 acetone. residual level.
3.2 acetonitrile. residual level.
3.3 hexane. Residual level.
3.4 Sodium chloride. 650 ℃ burning 4h, placed in the dryer to cool and set aside.
3.5 acetone + n-hexane (3 + 7). Take 300mL acetone, n-hexane was added 700mL, shake spare.
Fipronil 3.6 standard (Fipronil, C12H4Cl2F6N4OS, CAS120067-37-3). not less than 96.5% purity.
3.7 Fipronil formulated standard solution. Accurately weighed amount of standard, with the dissolution of a small amount of acetone, and acetone preparation of a concentration
1.0mg/mL standard stock solution. If necessary with acetone + n-hexane (3.5) diluted to the appropriate concentration of standard working solution. save
At -18 ℃ refrigerator.
3.8 ethylenediamine bonded silica (PrimarySecondaryamine, PSA) SPE. 500mg, 3mL or equivalent person.
4 instruments and equipment
4.1 Gas chromatography - mass spectrometry. with negative chemical ionization.
4.2 Solid phase extraction device.
4.3 homogenizer.
4.4 rotary evaporator.
4.5 nitrogen concentrators.
4.6 plug tube. 50mL, 100mL.
4.7 concentrated bottle. 50mL, 100mL.
Pipette 4.8. 1mL, 2mL, 5mL, 10mL.
5 Sample Preparation and Storage
5.1 Sample Preparation
5.1.1 Cereals
Take a representative sample volume 500g, with all the grinding mills and sieve through a 2.0mm hole. Mixing, they are divided into two as a sample,
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