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SN/T 3861-2014: Determination of hexachlorovaraxrene residues in foodstuffs for export
Status: Valid
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| SN/T 3861-2014 | English | 549 |
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Determination of hexachlorovaraxrene residues in foodstuffs for export
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SN/T 3861-2014
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PDF similar to SN/T 3861-2014
Basic data | Standard ID | SN/T 3861-2014 (SN/T3861-2014) | | Description (Translated English) | Determination of hexachlorovaraxrene residues in foodstuffs for export | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X04 | | Classification of International Standard | 67.050 | | Word Count Estimation | 21,262 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | AQSIQ notification issued in 2014 on the first batch of 230 industry-standard entry-exit inspection and quarantine | | Issuing agency(ies) | General Administration of Customs | | Summary | This Standard specifies the gas chromatographic method for foods hexachloropropane paraxylene residues. This Standard applies to rice, cabbage, apple, tea, chicken, fish, pork, beef liver, beef kidney, citrus, milk hexachlorofluorescein of xylene residues | SN/T 3861-2014: Determination of hexachlorovaraxrene residues in 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 hexachlorovaraxrene residues in foodstuffs for export
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Six food exports chlorine paraxylene
Detection of Residual
Issued on. 2014-01-13
2014-08-01 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.
Please note that some content of this document may involve patents, publication of this document
Institutions do not assume the responsibility to identify these patents.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China Hunan Exit Inspection and Quarantine, People's Republic of China Entry-Exit Inspection and Xiamen
Quarantine Bureau.
The main drafters of this standard. Yanhong Fei, Wang Meiling, Liang Jingtao, Li Yongjun, Zhou Yu, Jiao Yanna, Dai Hua, Xiaojia Yong, Zhang Ying, Huang Zhiqiang.
Six food exports chlorine paraxylene
Detection of Residual
1 Scope
This standard specifies the gas chromatographic methods in food six chlorine xylene residues.
This standard applies to rice, cabbage, apple, tea, chicken, fish, pork, beef liver, beef kidney, citrus, milk sixth chlorine residual p-xylene
Determination of the amount 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 Method summary
Sample with acetone - water mixtures oscillation and the extracts were washed with n-hexane liquid - liquid distribution, the concentrated sulfuric acid sulfonation purification, with
Equipped with electron capture detector of gas chromatography were determined by gas chromatography - mass spectrometry confirmed, external standard.
4 Reagents and materials
Unless otherwise specified, all reagents were of analytical grade water as a water GB/T 6682 regulations.
4.1 acetone. HPLC grade.
4.2 hexane. HPLC grade.
4.3 Concentrated sulfuric acid. pure class distinctions.
4.4 six-chloro-p-xylene standards (hexachloroparaxylene, C8H4Cl6, CAS. 68-36-0). purity greater than or equal to 99%.
4.5 standard stock solution. Weigh accurately 50mg (accurate to 0.1mg) six-chloro-p-xylene standards in 50mL volumetric flask, with the amount of propylene
Ketone (4.1) was dissolved with acetone and dilute to 50mL, shake, formulated as standard stock solution 1000μg/mL, and stored in the dark to the following 4 ℃,
Valid for six months.
4.6 standard intermediate solution. Imbibe 1.0mL standard stock solution (4.5) in 100mL flask, diluted with acetone (4.1) and fixed
Volume to 100mL, shake, formulated as 10μg/mL standard intermediate solution, dark save for the following 4 ℃, valid for three months.
4.7 standard solution. Pipette appropriate amount of the intermediate standard solution (4.6) based on testing needs, the preparation was diluted with n-hexane concentrations were
0.002mg/L, 0.005mg/L, 0.01mg/L, 0.02mg/L, 0.05mg/L, 0.1mg/L, 0.2mg/L of standard solution.
The standard solution prepared before use required.
5. Apparatus
5.1 Gas chromatograph. equipped with electron capture detector (ECD).
5.2 Gas chromatography - mass spectrometry. with electron impact ionization (EI).
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