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Determination of perfluoralkyl iodides content - Gas chromatography mass spectrometry
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Basic data
| Standard ID | SN/T 4568-2016 (SN/T4568-2016) |
| Description (Translated English) | Determination of perfluoralkyl iodides content - Gas chromatography mass spectrometry |
| Sector / Industry | Commodity Inspection Standard (Recommended) |
| Classification of Chinese Standard | G73 |
| Word Count Estimation | 14,146 |
| Date of Issue | 2016-08-23 |
| Date of Implementation | 2017-03-01 |
| Regulation (derived from) | State-Quality-Inspection-Accredidation (2016) No.438 |
| Issuing agency(ies) | General Administration of Customs |
SN/T 4568-2016: Determination of perfluoralkyl iodides content - Gas chromatography mass spectrometry
---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 perfluoralkyl iodides content-Gas chromatography mass spectrometry
People's Republic of China Exit Inspection and Quarantine standards
Perfluoroalkyl iodide product content determination
Gas chromatography mass spectrometry
2016-08-23 released
2017-03-01 Implementation
People's Republic of China
General Administration of Quality Supervision, Inspection and Quarantine released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard is proposed and managed by the National Certification and Accreditation Administration Committee.
This standard was drafted by Liaoning Entry-Exit Inspection and Quarantine Bureau, People's Republic of China.
The main drafters of this standard. Liu Ning, Xu Yihong, Zhong Yu, Liu Yu, Han Hong dry.
Perfluoroalkyl iodide product content determination
Gas chromatography mass spectrometry
1 Scope
This standard specifies the perfluoroalkyl iodine product content by gas chromatography mass spectrometry method.
This standard applies to perfluoroalkyl iodine products C4F9I, C6F13I, C8F17I, C10F21I, C12F25I determination of content.
2 method summary
The sample was dissolved by methanol ultrasound, the volume after the membrane, using gas chromatography mass spectrometry. Area percentage method of quantitative.
3 Reagents and materials
3.1 methanol. Chromatographic purity.
3.2 Perfluoroalkyl iodide series of standards (C4F9I, C6F13I, C8F17I, C10F21I, C12F25I) Purity greater than 98%.
3.3 organic microporous membrane pore size 0.45μm.
4 instruments
4.1 Gas Chromatography Mass Spectrometer with Electron Impact Source (EI).
4.2 Balance. Sense of 0.1mg.
4.3 ultrasonic water bath. Power 600W.
5 measurement steps
5.1 Extraction
Weigh the sample 100.0mg (accurate to 0.1mg), with methanol (3.1) 35 ℃ sonicated 20 minutes to fully dissolve, to be cooled to room temperature
After transfer to 10mL volumetric flask, take 1.0mL over 0.45μm microporous membrane, to be measured.
5.2 Determination
5.2.1 GC reference conditions 1)
1) Non-Commercial Instructions The test columns listed here are for reference only and are not for commercial purposes.
GC reference conditions are as follows.
a) Column. DB-5MS column, 30 m × 0.32 mm (ID) × 0.25 μm, or equivalent;
b) Programmed temperature initial column temperature 30 ℃, hold 5min, with a rate of 15 ℃/min rose to 280 ℃, hold 15min;
c) Inlet temperature .270 ° C;
d) Helium Purity ≥99.999%, 2.0 mL/min;
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