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- Title
超临界 CO<sub>2</sub> 萃取技术在检测干洗服装四氯乙烯 残留量中的应用.
- Authors
马艳英; 任清庆; 傅科杰; 刘懿丹
- Abstract
In order to determine residual PCE in garments, a new and environmenlt-friendly technology of supercritical CO2 extraction, combined with gas chromatography-mass spectrometry was developed according to the chemical properly of PCE. Single factor method was used to determine the optimum extraction conditions. Dichloromethane was used as the entrainer and its flow rate was 0.9 mL/min, the optimum pressure was 30 MPa, the optimum extraction time was 30 min, the optimum temperature was 35 °C, the optimum flow rate of CO2 was 30 g/min. PCE was analyzed by GC-MS, the retention time was 4.877 min. The linear correlation coefficient of this method was 0.9999, with a low detection limit of 0.9 mg/kg, the recoveries of four materials was between 94. 1% and 105. 7%, the relative standard deviations (RSDs) ranged from 2.15% to 3.02%, the validation result showed that the method can meet the requirement of dry-cleaned garments testing.
- Publication
Wool Textile Journal, 2019, Vol 47, Issue 3, p61
- ISSN
1003-1456
- Publication type
Article
- DOI
10.19333/j.mfkj.2018090310305