SN/T 3861-2014 English PDF

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SN/T 3861-2014: Determination of hexachlorovaraxrene residues in foodstuffs for export
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
SN/T 3861-2014	549	Add to Cart	4 days	Determination of hexachlorovaraxrene residues in foodstuffs for export	Valid

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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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