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Determination of polychlorinated naphthalenes in electrical and electronic products. Part 2: High performance liquid chromatography method
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Basic data
| Standard ID | SN/T 3467.2-2014 (SN/T3467.2-2014) |
| Description (Translated English) | Determination of polychlorinated naphthalenes in electrical and electronic products. Part 2: High performance liquid chromatography method |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | L10 |
| Classification of International Standard | 29.020 |
| Word Count Estimation | 9,922 |
| 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 provides high-performance liquid chromatographic method electrical and electronic products polychlorinated naphthalene content. This section applies to the determination of polychlorinated naphthalene electrical and electronic products plast |
SN/T 3467.2-2014: Determination of polychlorinated naphthalenes in electrical and electronic products. Part 2: High performance liquid chromatography 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 polychlorinated naphthalenes in electrical and electronic products.Part 2. High performance liquid chromatography method
People's Republic of China Entry-Exit Inspection and Quarantine Standards
Determination of electrical and electronic products polychlorinated naphthalene
Part 2. High performance liquid chromatography
products-Part 2. Highperformanceliquidchromatographymethod
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
SN/T 3467 "electrical and electronic products, polychlorinated naphthalene determination" is divided into three parts.
--- Part 1. gas chromatography - mass spectrometry;
--- Part 2. High performance liquid chromatography;
--- Part 3. Gas chromatography - electron capture detection method.
This section SN/T Section 23467 of.
This section drafted in accordance with GB/T 1.1-2009 given rules.
This section proposed and managed by the National Certification and Accreditation Administration Committee.
This section is responsible for drafting unit. People's Republic of China Guangdong CIQ.
The main drafters of this section. Homocysteine on Fang Xing there, Yueda Lei, Xu Zhiqin, ZHOU Ming-hui, Liu Yingfeng, Di Cuiping, Shaw ago, Zheng Jianguo.
Determination of electrical and electronic products polychlorinated naphthalene
Part 2. High performance liquid chromatography
1 Scope
This section provides high-performance liquid chromatographic method for electrical and electronic products polychlorinated naphthalene content.
This section applies to the determination of polychlorinated naphthalene in electrical and electronic goods and plastic parts.
2 Method summary
Samples microwave extraction with toluene as the solvent extract was subjected to silica gel SPE column purification, concentration, volume, high performance liquid chromatography
Measured, quantified by external standard.
3 Reagents and materials
3.1 Toluene. chromatography.
3.2 Methanol. chromatographically pure.
Over 3.3 chloronaphthalene. an eight-chloro-chloronaphthalene standards, a purity of ≥97%.
3.4 standard stock solution (1000mg/L). Weigh accurately respectively 25mg (accurate to 0.1mg) Polychlorinated naphthalene standards, placed in 25mL capacity
Bottle with toluene (3.1) is dissolved, set the volume.
3.5 Working standard solutions. The standard stock solution (3.4) was diluted stepwise with toluene concentrations were formulated to 0.5mg/L, 1mg/L, 5mg/L,
25mg/L, 100mg/L of standard working solution.
3.6 silica SPE column. 3mL/500mg, before use with 5mL toluene activation.
3.7 The organic phase filter. 0.45μm.
4 instruments and equipment
4.1 High performance liquid chromatograph. with DAD detector.
Microwave Extractor 4.2. with polytetrafluoroethylene (PTFE) core magnetic stirrer, rated power not less than 200W.
4.3 vacuum rotary evaporator.
4.4 Freezer Mill.
4.5 Balance. a sense of the amount of 0.1mg.
5 sample
The sample was cut to a particle size of not more than 5mm, the refrigerating mill to a maximum particle size of not greater than 1mm.
Step 6 Analysis
Sample preparation before 6.1
6.1.1 Extraction
Weigh 0.5g (accurate to 0.1mg) sample in the microwave extraction tank, adding PTFE core magnetic stirring, then add 10mL A
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