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Textiles -- Determination of surfactant -- Distearyl dimethyl ammonium chloride
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Basic data
| Standard ID | GB/T 23324-2009 (GB/T23324-2009) |
| Description (Translated English) | Textiles -- Determination of surfactant -- Distearyl dimethyl ammonium chloride |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | W04 |
| Classification of International Standard | 59.080.01 |
| Word Count Estimation | 6,647 |
| Date of Issue | 2009-03-19 |
| Date of Implementation | 2010-01-01 |
| Quoted Standard | GB/T 6682 |
| Regulation (derived from) | National Standard Approval Announcement 2009 No.3 (Total No.143) |
| Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China |
| Summary | This standard specifies the use of liquid chromatography-tandem mass spectrometry (LC-MS/MS) determination of textile products distearyl dimethyl ammonium chloride (DSDMAC) residue methods. Note: DSDMAC usually a carbon chain length of 18 and sixteen mixture of alkyl dimethyl ammonium chloride, namely comprising dioctadecyl dimethyl ammonium chloride, cetyl dimethyl dichloride bis ammonium and dimethyl octadecyl hexadecyl ammonium chloride. This standard applies to all types of textile products. |
GB/T 23324-2009: Textiles -- Determination of surfactant -- Distearyl dimethyl ammonium chloride
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Textiles.Determination of surfactant.Distearyl dimethyl ammonium chloride
ICS 59.080.01
W04
National Standards of People's Republic of China
Textiles - Determination of surfactants
Distearyl dimethyl ammonium chloride
Posted 2009-03-19
2010-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
Appendix A of this standard is an informative annex.
The standard proposed by China Textile Industry Association.
This standard by the National Standardization Technical Committee on Basic Standards Subcommittee Textiles (SAC/TC209/SC1) centralized.
This standard was drafted. People's Republic of China Jiangsu Entry-Exit Inspection and Quarantine Bureau, Textile Industry Research Institute of Standardization.
Drafters of this standard. Wu Lina, CAI Jian and Ding Friends Chao, Zhou Jing Chu, Xu Xinhua, Zhoushao Jiang, Yang Annan, palace Han Han.
Textiles - Determination of surfactants
Distearyl dimethyl ammonium chloride
Warning. Use of this standard personnel should be regular laboratory work experience. This standard does not point out all possible security issues.
Users have the responsibility to take appropriate safety and health practices and to ensure compliance with the conditions relevant national regulations.
1 Scope
This standard specifies the use of liquid chromatography - tandem mass spectrometry (LC-MS/MS) Determination of textile products distearyl dimethyl ammonium chloride
Method (DSDMAC) residues.
NOTE. DSDMAC typically having a carbon chain length of octadecyl and hexadecyl alkyl dimethyl ammonium chloride mixture composition, i.e. containing distearyl dimethyl ammonium chloride,
Dicetyl dimethyl ammonium chloride and cetyl stearyl dimethyl ammonium chloride.
This standard applies to all types of textile products.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 6682 analytical laboratory use specifications and test methods (GB/T 6682-2008, ISO 3696. 1987, MOD)
Principle 3
Sample after extracted with methanol to distearyl dimethyl ammonium chloride, dicetyl dimethyl ammonium chloride and cetyl eighteen
Alkyl dimethyl ammonium chloride as the target analyte by liquid chromatography - qualitative tandem mass spectrometry (LC-MS/MS), quantitative determination.
4 Reagents
Unless otherwise indicated in the analysis reagents were analytical grade and GB/T 6682 provisions tertiary water.
4.1 Methanol (HPLC grade).
4.2 glacial acetic acid.
4.3 DSDMAC (CAS number. 107-64-2). Purity ≥97%.
4.4 acetic acid solution (0.05%). accurate Pipette 0.5mL glacial acetic acid (4.2) diluted with water to 1000mL.
4.5 standard stock solution (500mg/L). Weigh 0.1250gDSDMAC, dissolved in methanol, transferred set 250mL flask, with
Methanol to volume, shake.
NOTE. This solution was stored at ambient 0 ℃ ~ 4 ℃ in a period of one month.
4.6 standard solution. Imbibe standard stock solution (4.5), stepwise diluted with methanol to a concentration of 100μg/L, 200μg/L,
400μg/L, 600μg/L and 800μg/L series of standard working solution.
NOTE. This solution was stored at ambient 0 ℃ ~ 4 ℃ in a period of one month.
5 Apparatus and materials
5.1 Liquid chromatography - tandem quadrupole mass spectrometer (LC-MS/MS), equipped with electrospray ionization (ESI).
5.2 temperature controlled ultrasonic bath. operating frequency of 40kHz, 70 ℃ when the temperature control accuracy of ± 5 ℃.
5.3 organic film filter head. 0.45μm.
5.4 extractors. a tubular, densely occlusion, approximately 50mL, made of hard glass.
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