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SN/T 1957-2007: Determination of quintozene residues in medicinal plant and their products for import and export. GC-MS method
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| SN/T 1957-2007 | English | 449 |
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Determination of quintozene residues in medicinal plant and their products for import and export. GC-MS method
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SN/T 1957-2007
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PDF similar to SN/T 1957-2007
Standard similar to SN/T 1957-2007 GB/T 41907 SN/T 4806 SN/T 4527 SN/T 4458 Basic data | Standard ID | SN/T 1957-2007 (SN/T1957-2007) | | Description (Translated English) | Determination of quintozene residues in medicinal plant and their products for import and export. GC-MS method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | C23 | | Classification of International Standard | 11.120.10 | | Word Count Estimation | 14,181 | | 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 herbs and its products PCNB residues by gas chromatography mass spectrometry. This standard applies to ginseng, ginseng oral liquid PCNB residues. | SN/T 1957-2007: Determination of quintozene residues in medicinal plant and their products for import and export. GC-MS method
---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 quintozene residues in medicinal plant and their products for import and export.GC-MS method
Exit inspection and quarantine industry standard book People's Republic of China
Importers of Chinese herbal medicines and products PCNB
Residues by 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
Appendix A of this standard is an informative annex.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. Tianjin People's Republic of China Exit Inspection and Quarantine.
The main drafters of this standard. Lin Anqing, Xu Hong, Zhang Man, Gu Long, He Jia, Zhang Jun, Wu Yanhui, Xiaoya Bing.
This is the first issue of inspection and quarantine industry standards.
Importers of Chinese herbal medicines and products PCNB
Residues by Gas Chromatography - Mass Spectrometry
1 Scope
This standard specifies the herbal medicines and products of quintozene residues in gas chromatography - mass spectrometry method.
This standard applies to ginseng, ginseng oral liquid quintozene residues determination.
2 Method summary
Sample with n-hexane - acetone solution was extracted, concentrated sulfuric acid sulfonation, by gas chromatography - mass spectrometry, external standard.
3 Reagents and materials
Unless otherwise specified, reagents were of analytical grade water as a water.
3.1 hexane. chromatographically pure.
3.2 acetone. chromatography.
3.3 Concentrated sulfuric acid. pure class distinctions.
3.4 anhydrous sodium. Burning 4h at 650 ℃, placed in a desiccator.
3.5 sulfate solution. 40g/L.
3.6 PCNB (Quintozene, C6Cl5NO2, CAS. 82-68-8) Standard. 99% or greater purity.
3.7 PCNB standard solution. Accurately weigh an adequate amount of PCNB standards, formulated with n-hexane at a concentration of 100μg/mL standard
Quasi stock solution. Needed with n-hexane diluted to the appropriate concentration of standard working solution. Stored at 0 ℃ ~ 4 ℃ refrigerator.
3.8 anhydrous sodium sulfate column. 80mm × 40mm (inner diameter) cylindrical funnel, bottom cushion height about 5mm cotton, refill 10g anhydrous sodium sulfate
(3.4).
4 instruments and equipment
4.1 Gas chromatography - mass spectrometry with electron impact source (EI).
4.2 vortex mixer.
4.3 high-speed homogenizer. 24000r/min.
4.4 Centrifuge. 3000r/min.
4.5 rotary evaporator.
4.6 mill herbs.
5 Sample Preparation and Storage
Take a representative sample of ginseng about 500g, fully crushed through 2.0mm sieve. Take a representative sample of about oral ginseng 500g, mix
Uniform, loaded into a clean container and sealed and labeled, stored refrigerated at 4 ℃.
In the course of sampling and sample preparation operation, should prevent sample contamination or change PCNB residue content occur.
6 measuring step
6.1 Extraction
6.1.1 ginseng samples
Weigh 5g (accurate to 0.01g) in 100mL centrifuge sample tube, was added 50mL acetone and n-hexane (2 + 8, volume ratio) was added,
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