SN/T 0702-2011 English PDF

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SN/T 0702-2011: Determination of chlorbenzilate residues in grains and nuts for import and xwport. GC-MS method
Status: Valid

SN/T 0702: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 0702-2011	469	Add to Cart	3 days	Determination of chlorbenzilate residues in grains and nuts for import and xwport. GC-MS method	Valid
SN 0702-1997	559	Add to Cart	4 days	Method for the determination of chlorobenzilate residues in nuts and nut products for export	Obsolete

Similar standards

GB/T 10782   GB/T 22165   GB/T 20706   SN/T 0327.2   SN/T 0533   SN/T 0327.1   

Basic data

Standard ID: SN/T 0702-2011 (SN/T0702-2011)
Description (Translated English): Determination of chlorbenzilate residues in grains and nuts for import and xwport. GC-MS method
Sector / Industry: Commodity Inspection Standard (Recommended)
Classification of Chinese Standard: X24
Word Count Estimation: 18,132
Date of Issue: 2011-02-25
Date of Implementation: 2011-07-01
Older Standard (superseded by this standard): SN 0702-1997
Regulation (derived from): ?AQSIQ-Inspection [2011] 90
Issuing agency(ies): General Administration of Customs
Summary: This standard specifies the cereal grains and nuts mites alcohol residue in ethyl measured sample, gas chromatography-mass spectrometry and confirmation methods. This standard applies to rice, corn, , soybeans, oat shallow, wheat walnut, almonds, hazelnut, peanuts, sesame, chestnuts, sweet, yam mites alcohol residue in ethyl determination and confirmation.

SN/T 0702-2011: Determination of chlorbenzilate residues in grains and nuts for import and xwport. 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 chlorbenzilate residues in grains and nuts for import and xwport. GC-MS method People's Republic of China Entry-Exit Inspection and Quarantine Standards Replacing SN 0702-1997 Importers in cereals and nuts mites ethyl alcohol Residue detection methods Gas Chromatography - Mass Spectrometry Issued on. 2011-02-25 2011-07-01 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 replaces SN 0702-1997 "export of nuts and nut products, ethyl alcohol residues in mites." This standard compared with SN 0702-1997, the main technical changes are as follows. --- Changing the name of the standard; --- Modify the detection of residual amount of ethyl alcohol mites, detection methods to gas chromatography - mass spectrometry. 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. Chang Chun-yan, Wang Yunfeng, Chenqi Yong, Ge Baokun, Jetway Mi, Wang, Liu Yang, Su Yi. This standard replaces the standards previously issued as follows. --- SN 0702-1997. Importers in cereals and nuts mites ethyl alcohol Residue detection methods Gas Chromatography - Mass Spectrometry

1 Scope

This standard specifies the sample preparation, gas chromatography in cereals and nuts, ethyl alcohol mites Residues Determination - mass spectrometry and confirmation methods. This standard applies to rice, wheat, barley, corn, soybeans, oats, walnut, almond, hazelnut, peanut, sesame, chestnuts, sweet potatoes, mountain Determination of ethyl alcohol mites medicine residues and confirmation.

2 Method summary

The sample was extracted with acetonitrile by accelerated solvent extraction apparatus, by solid phase extraction (SPE), and concentrated eluate volume by gas chromatography - mass spectrometry Measuring instrument validation, external standard.

3 Reagents and materials

Unless otherwise specified, all reagents were of analytical grade, double distilled water. 3.1 acetonitrile. chromatography. 3.2 Toluene. pure class distinctions. 3.3 hexane. chromatographically pure. 3.4 anhydrous sodium sulfate. before scorching at 650 ℃ 4h, stored in a desiccator, cool reserve. Diatomite 3.5. pure class distinctions. 3.6 acetonitrile - toluene mixed solution (31, volume ratio). 3.7 mites ethyl alcohol (Chlorobenzilate, C16H14C12O3, CAS number. 510-15-6) standard substance. purity of greater than 98%. 3.8 mites ethyl alcohol standard solution. Accurately weighed amount of standard, toluene was dissolved, to a concentration of 1.0mg/mL standard stock liquid. Hexane and then diluted to appropriate concentration standard working solution as needed. 4 ℃ stored in the refrigerator, you can use a month. 3.9 C18 solid phase extraction column. 12mL, 2g or equivalent person. 3.10 graphite carbon SPE column. 3mL, 0.25g or equivalent person. 3.11 amino (NH2) Column. 3mL, 0.5g or equivalent person.

4 instruments and equipment

4.1 Gas chromatography - mass spectrometry. source with electron impact (EI). 4.2 Analysis of balance. a sense of the amount of 0.1mg and 0.01g. 4.3 Accelerated Solvent Extraction System. Extraction with 34mL pool. 4.4 Solid phase extraction device. 4.5 rotary evaporator. 4.6 meter dry nitrogen. 4.7 pear-shaped bottle.200mL. 4.8 Pipette. 1mL ~ 5mL. ......

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