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SN/T 3871-2014: Determination of hexabromocyclododecane in porphyra, kelp and sargassum for export
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| SN/T 3871-2014 | English | 239 |
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Determination of hexabromocyclododecane in porphyra, kelp and sargassum for export
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SN/T 3871-2014
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PDF similar to SN/T 3871-2014
Basic data | Standard ID | SN/T 3871-2014 (SN/T3871-2014) | | Description (Translated English) | Determination of hexabromocyclododecane in porphyra, kelp and sargassum for export | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | X20 | | Classification of International Standard | 67.120.30 | | Word Count Estimation | 9,951 | | Date of Issue | 12/1/2014 | | Date of Implementation | 5/1/2015 | | Quoted Standard | GB/T 6682 | | Regulation (derived from) | State-Quality-Inspection-accreditation [2014] 614 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the residual amount of export seaweed, kelp, hijiki Three six HBCD isomers (��-HBCD, ��-HBCD and ��-HBCD) liquid chromatography - tandem mass spectrometry (LC-MS/MS) determination. This standard applies to seaweed, kelp, Sargassum ��-H | SN/T 3871-2014: Determination of hexabromocyclododecane in porphyra, kelp and sargassum 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 export seaweed, kelp, hijiki in six HBCD content)
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Export seaweed, kelp, hijiki Six HBCD
Determination of
Determinationofhexabromocyclododecaneinporphyra, kelpand
Issued on. 2014-11-19
2015-05-01 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 of the content of this document may involve patents. Distribution 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 Zhejiang Exit Inspection and Quarantine.
The main drafters of this standard. Han Chao to Yan Fang, Wu Lili, Liu Cuiping, Ou Zhu Zhen, Liu Bin, Chen Hsiang accurate.
Export seaweed, kelp, hijiki Six HBCD
Determination of
1 Scope
This standard specifies the export seaweed, kelp, hijiki Three six HBCD isomers (α-HBCD, β-HBCD and γ-HBCD)
Residues liquid chromatography - tandem mass spectrometry (LC-MS/MS) measurement method.
This standard applies to seaweed, kelp, Sargassum α-HBCD, β-HBCD and γ-HBCD residues detection 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
Samples six HBCD by n-hexane - acetone mixture Soxhlet extraction, solid phase extraction (SPE), liquid chromatography - tandem mass spectrometry
Determination of internal standard.
4 Reagents and materials
Unless otherwise indicated, the reagents used were of analytical grade, water as a secondary water GB/T 6682 regulations.
4.1 dichloromethane.
4.2 n-hexane.
4.3 acetone.
4.4 Methanol. chromatographically pure.
4.5 acetonitrile. chromatography.
4.6 hexane - acetone (11) solution. take the amount of n-hexane to 1000mL 500mL volumetric flask with acetone to the mark.
4.7 dichloromethane - n-hexane (23) solution. take the amount of methylene chloride to 1000mL 400mL volumetric flask, dilute to n-hexane
Scale.
4.8 α-HBCD (C12H18Br6, CAS number. 134237-50-6), β-HBCD (CAS Number. 134237-51-7) and γ-HBCD (C12H18Br6,
C12H18Br6, CAS number. 134237-52-8) Standard. concentration was 100μg/mL.
4.9 α-HBCD, β-HBCD and γ-HBCD standard stock solution. lessons standard solution (4.8), diluted with methanol, are formulated into a thick
Degree 1000ng/mL of the standard stock solution.
4.10 13C12-β-HBCD standard. a concentration of 50μg/mL.
4.11 13C12-β-HBCD standard stock solution. lessons standard solution (4.10), diluted with methanol to prepare a concentration of 1000ng/mL
Standard stock solution.
4.12 contains the isotope within the target mixed series of standard working solution. draw an appropriate amount of standard stock solution (4.9) and internal standard stock solution
(4.11), diluted with methanol and formulated into α-HBCD, β-HBCD and γ-HBCD concentration range of 5ng/mL ~ 50ng/mL in the mixed series
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