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GB/T 23323-2009: Textiles -- Determination of surfactant -- Ethylene diamine tetra acetate and diethylene triamine penta acetate
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GB/T 23323-2009: Textiles -- Determination of surfactant -- Ethylene diamine tetra acetate and diethylene triamine penta acetate

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Textiles. Determination of surfactant. Ethylene diamine tetra acetate and diethylene triamine penta acetate ICS 59.080.01 W04 National Standards of People's Republic of China Textiles - Determination of surfactants Ethylenediamine tetraacetate and diethylenetriamine pentaacetate 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

The Standard Appendix A, Appendix B 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. The main drafters of this standard. and Cai, Xu Xinhua, Ding Friends Chao, Wu Lina, Caoxi Zhong, Wu Hao, Wang Hsiao-ping, Yang Jinfu. Textiles - Determination of surfactants Ethylenediamine tetraacetate and diethylenetriamine pentaacetate Warning. Use of this standard shall have a person experiences regular laboratory work. 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) and high performance liquid chromatography (HPLC/DAD) Determination of textiles Acid and its salts (EDTA) and diethylene triamine pentaacetic acid and its salts (DTPA) residue in products of ethylene diamine. 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 The sample was alkaline solution ultrasonic extraction under acidic conditions and after the ferric complex by liquid chromatography - tandem mass spectrometry or high performance liquid chromatography Spectrometer for qualitative and quantitative determination. In liquid chromatography, the reservations agent to improve the complex cation chromatography.

4 Reagents

Unless otherwise indicated, the reagents used in the analysis were of analytical grade and GB/T 6682 provisions tertiary water. 4.1 Acetonitrile (HPLC grade). 4.2 glacial acetic acid. 4.3 ammonium acetate. 4.4 tetrabutyl ammonium acetate. 4.5 tetrabutylammonium bromide. 4.6 ethylenediaminetetraacetic acid (CAS Number. 60-00-4). purity ≥99%. 4.7 diethylenetriamine pentaacetic acid (CAS Number. 67-43-6). Purity ≥99%. 4.8 ferric chloride solution (500mg/L). Weigh 0.5g of ferric chloride, dissolved in water and diluted to 1000mL. 4.9 hydrochloric acid solution. volume fraction of 0.5%. Pipette 0.5mL37% of concentrated hydrochloric acid and diluted with water to 100mL. 4.10 sodium hydroxide solution (0.4g/L). Weigh 0.4g of sodium hydroxide, dissolved in water and diluted to 1000mL. 4.11 cations reagent Ⅰ. Weigh 0.603g tetrabutyl ammonium acetate (4.4), dissolved in water, placed in 1000mL volumetric flask, add water To volume, shake. (4.2) with glacial acetic acid solution adjusted to pH 4.0 ± 0.2. 4.12 cations reagent Ⅱ. Weigh 0.645g of tetrabutylammonium bromide (4.5) and 2.31g ammonium acetate (4.3) in 1000mL volumetric flask Are dissolved in water and dilute to the mark, shake. (4.2) with glacial acetic acid solution adjusted to pH 4.0 ± 0.2. 4.13 standard stock solution (500mg/L). Weigh accurately 0.1250gEDTA DTPA and one each, respectively, with sodium hydroxide solution (4.10) was dissolved, and dilute to 250mL. NOTE. This solution is stored in the environment 0 ℃ ~ 4 ℃ in a period of six months. ...