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SN/T 2463-2010: Method for the determination of polychlorinated biphenyls (PCBs) in textiles. GC method
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| SN/T 2463-2010 | English | 239 |
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Method for the determination of polychlorinated biphenyls (PCBs) in textiles. GC method
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SN/T 2463-2010
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Basic data | Standard ID | SN/T 2463-2010 (SN/T2463-2010) | | Description (Translated English) | Method for the determination of polychlorinated biphenyls (PCBs) in textiles. GC method | | Sector / Industry | Commodity Inspection Standard (Recommended) | | Classification of Chinese Standard | W04 | | Classification of International Standard | 59.080.01 | | Word Count Estimation | 9,938 | | Date of Issue | 2010-01-10 | | Date of Implementation | 2010-07-16 | | Regulation (derived from) | National Quality Inspection [2010] No. 13 | | Issuing agency(ies) | General Administration of Customs | | Summary | This standard specifies the textiles polychlorinated biphenyls (PCBs) by gas chromatographic method. This standard applies to textiles more than 10 kinds of polychlorinated biphenyls (PCBs) determination, the determination of other PCB isomers can be implemented by reference. | SN/T 2463-2010: Method for the determination of polychlorinated biphenyls (PCBs) in textiles. GC method
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Method for the determination of polychlorinated biphenyls (PCBs) in textiles.GC method
Exit inspection and quarantine industry standard book People's Republic of China
Determination of polychlorinated biphenyls in textiles
Gas chromatography
Issued on. 2010-01-10
2010-07-16 implementation
People's Republic of China
The State Administration of Quality Supervision, Inspection and Quarantine released
Foreword
Appendix A of this standard is a normative appendix, Appendix B and Appendix C are informative appendices.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted. People's Republic of China, Ningbo Entry-Exit Inspection and Quarantine Bureau Technology Center.
The main drafters of this standard. Kangji Tao, Yu Xuejun, Xie Donghua, Zuo Qing, Cham Ka, Qiu Yajun.
This standard is the first release of the entry-exit inspection and quarantine industry standards.
Determination of polychlorinated biphenyls in textiles
Gas chromatography
1 Scope
This standard specifies the gas chromatographic method textiles polychlorinated biphenyls (PCBs) in.
This standard applies to the determination of 10 kinds of textile polychlorinated biphenyls (PCBs) and polychlorinated biphenyls determination other isomer may refer to.
Principle 2
The samples were extracted with hexane extraction or ultrasonic oscillation extraction, purification and then by concentrated sulfuric acid sulfonation, with electron capture detector (ECD) Gas
Chromatography detection, external standard.
3 Reagents and materials
Unless otherwise specified, all reagents were of analytical grade, double distilled water or water of equivalent purity.
3.1 n-hexane (C6H14 > 98.0%). chromatography, the sample taken the same amount of n-hexane was concentrated to 1mL, injection 1μL, will not be permitted
Now analyte peak.
3.3 PCBs standard substance. purity ≥98.5%, see Appendix A.
3.4 PCBs standard stock solution A (100μg/mL). Weigh accurately a variety of standard PCBs (3.3) about 10.0mg (accurate to
0.1mg), were quantitatively transferred to 100mL volumetric flask, dilute to the mark with n-hexane, mixing, 4 ℃ refrigerator stored in the dark for 1 year. This solution
Equivalent to 100μg per ml liquid PCBs standards.
3.5 PCBs mixed standard stock solution B (1.00μg/mL). accurate Pipette various PCBs standard stock solution A (3.4)
1.00mL in 100mL volumetric flask, and dilute to the mark with n-hexane, mixing, 4 ℃ refrigerator stored in the dark for six months. This solution is equivalent to
PCBs per ml 1.00μg standards.
3.6 PCBs mixed standard working solution. accurate Pipette PCBs were mixed standard stock solution B (3.5) the appropriate volume, and with n
Hexane dilution, mixing, configured to standard working solution of the desired concentration.
4 instruments and equipment
4.1 Gas chromatograph. with an electron capture detector (ECD).
4.2 Electronic balance. a sense of the amount of 0.1mg and 0.01g.
4.3 ultrasonic generator. operating frequency of 40kHz.
4.4 Desktop constant temperature shaker.
4.5 rotary evaporator.
4.6 centrifuge.
5 Sample Preparation and Storage
Take the right amount of a representative sample of textiles, cut into 5mm × 5mm or less small pieces, and mix. After sampling the samples, should be used aluminum foil
Wrapped sample in order to prevent any change in the sample prior to testing.
Step 6 Analysis
Sample preparation before 6.1
Weigh in the sample 1g (accurate to 0.01g) a 50mL conical flask, 20mL of n-hexane (for the more absorbent blankets
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