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SN/T 2883-2011 PDF English

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SN/T 2883-2011: Determination of polybromobiphenyls in imported and exported box. Gas chromatography-mass spectrography method
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SN/T 2883-2011English239 Add to Cart 3 days [Need to translate] Determination of polybromobiphenyls in imported and exported box. Gas chromatography-mass spectrography method

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Basic data

Standard ID SN/T 2883-2011 (SN/T2883-2011)
Description (Translated English) Determination of polybromobiphenyls in imported and exported box. Gas chromatography-mass spectrography method
Sector / Industry Commodity Inspection Standard (Recommended)
Classification of Chinese Standard A85
Classification of International Standard 55.180.99
Word Count Estimation 9,943
Date of Issue 2011-05-31
Date of Implementation 2011-12-01
Regulation (derived from) National-Quality-Inspection-accreditation (2011) 291
Issuing agency(ies) General Administration of Customs
Summary This standard specifies the import and export carton PBBs gas chromatography-mass spectrometry. This standard applies to the determination of PBBs and export carton.

SN/T 2883-2011: Determination of polybromobiphenyls in imported and exported box. Gas chromatography-mass spectrography 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 polybromobiphenyls in imported and exported box.Gas chromatography-mass spectrography method People's Republic of China Entry-Exit Inspection and Quarantine Standards Determination of the import and export carton PBBs Gas chromatography - mass spectrometry Issued on. 2011-05-31 2011-12-01 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 is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Jiangsu Entry-Exit Inspection and Quarantine Bureau, People's Republic of China Tianjin Entry-Exit Inspection and Quarantine Bureau, People's Republic of China, Changzhou import and export of industrial and consumer product safety testing center. The main drafters of this standard. Liu Junfeng, Lining Tao, Wang Rong GEOPHYSICAL PROSPECTING FOR Chen. Determination of the import and export carton PBBs Gas chromatography - mass spectrometry

1 Scope

This standard specifies the import and export carton PBBs gas chromatography - mass spectrometry. This standard applies to the determination of PBBs and export carton.

2 formula

Polybrominated biphenyls (polybromobiphenyls, PBBs) structural formula shown in Figure 1. PBBs structure of more than one Principle 3 The sample was cut using toluene as the extraction solvent by Soxhlet extraction. The extract was purified by silica gel column after the solid phase and concentrated by gas chromatography - Mass spectrometers, external standard.

4 Reagents and materials

Unless otherwise specified, the reagents used were of analytical grade. 4.1 Toluene. HPLC grade. 4.2 a PBBs PBBs seven standards. See Appendix A. 4.3 Octabromobiphenyl nine polybrominated biphenyls and Decabromobiphenyl standards. purity ≥97%. Over 4.4 PBBs prepared (PBBs) standard working solution. Pipette a seven polybrominated biphenyls PBBs standard stock solution (4.2) appropriate volume, with When accurately weighed amount of Octabromobiphenyl nine polybrominated biphenyls and Decabromobiphenyl standards (4.3), diluted with toluene (4.1) and dilute to the mark, dubbed Required concentration series of standard working solution. 4.5 SiOH silica gel column. 1000mg/6mL.

5 Instruments

5.1 Gas chromatography - mass spectrometry (GC/MS), with EI source. 5.2 cellulose casing. 5.3 Soxhlet apparatus. 5.4 SPE device. ...

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