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SN/T 3226-2012: Determination of paraben esters preservatives in textiles and leather
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SN/T 3226-2012: Determination of paraben esters preservatives in textiles and leather

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Determination of paraben esters preservatives in textiles and leather People's Republic of China Entry-Exit Inspection and Quarantine Standards Textiles and leather products parabens Determination of preservatives Issued on. 2012-10-23 2013-05-01 implementation People's Republic of China The State Administration of Quality Supervision, Inspection and Quarantine released

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. This standard is proposed and managed by the National Certification and Accreditation Administration Committee. This standard was drafted. People's Republic of China Zhejiang Exit Inspection and Quarantine. The main drafters of this standard. Wu Gang, Jiang Yongxiang, Wu Jian Jian, Dayton Yu Hui, Guofang Long, Wang Lijun, Liu Ting, Sun Guojun, Zhao Hong Shan Dong drag lock. Textiles and leather products parabens Determination of preservatives 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 textile and leather products 7 kinds of parabens preservatives (see Appendix A), high performance liquid chromatography (HPLC) and Liquid chromatography - tandem mass spectrometry (LC-MS/MS) measurement method. This standard applies to textiles and leather products 7 kinds of measurement parabens preservatives.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein Member. For undated references, the latest edition (including any amendments) applies to this document. Laboratory use specifications and test methods GB/T 6682 Analysis GB/T 8170 repair value expressed about the rules and limit values and judgment Principle 3 Textile samples were methanol ultrasonic extraction using HPLC or LC-MS/MS for qualitative and quantitative determination; leather sample methanol ultrasound Extraction, and then after purification by gel permeation chromatography using HPLC or LC-MS/MS for qualitative and quantitative determination of external standard.

4 Reagents and materials

Unless otherwise specified, the reagents were HPLC grade water line with a chromatographic water GB/T 6682 regulations. 4.1 methanol. 4.2 methanol-water (11 volume) solution. amount of 125mL of methanol (4.1) in 250mL flask with water to volume. 4.3 ethyl acetate. 4.4 cyclohexane. 4.5 cyclohexane-ethyl acetate (11 volume) solution. Measure 1000mL of ethyl acetate (4.3) in 2000mL volumetric flask Cyclohexane to volume. 4.6 filler polystyrene gel (Bio-BeadsS-X3,200-400 mesh). 4.7 Standard substance. methyl paraben (80% purity), ethyl paraben (97.5% purity), propyl paraben (100% purity), paraben Isopropyl (100% purity), Butylparaben (100% purity), paraben, isobutyl acetate (99% purity), paraben heptyl ester (100% purity). 4.8 stock standard solution. 4.7 Standard substances listed were prepared in methanol at a concentration of one-component 1000mg/L of paraben Standard stock solution compounds. 4.9 standard working solution. seven kinds of stock solution parabens Pipette the appropriate amount of each compound into the same flask with methanol to ...