Issue 19, 2018

Supercritical CO2 extraction for the determination of tetrachloroethylene residues in dry-cleaned apparel

Abstract

Tetrachloroethylene (PERC) is still one of the most widely used dry cleaning agents in the world. It is, however, a toxic substance to the human body which could damage the central nervous system and increase the risk of cancer. Thus, it is necessary to monitor PERC residues in dry-cleaned apparel fabrics. This paper has established a type of analytical method, which was based on supercritical carbon dioxide (SC-CO2) extraction technology with gas chromatography-mass spectrometry (GC-MS), to detect the residual amount of PERC. A flow rate of 0.9 mL min−1 dichloromethane was used as the optimum extraction entrainer. The optimal extraction conditions were obtained by the response surface methodology as follows: an extraction pressure of 368.21 bar, a temperature of 36.62 °C, an extraction time of 31.64 min, and a CO2 flow rate of 31.48 g min−1. PERC was analyzed using a GC-MS instrument and the retention time of PERC was 4.877 min, and the limit of detection was determined to be 0.04 mg kg−1. The PERC recovery rates of cotton, silk, polyester, and mink ranged from 94.2 to 103.6%, with an RSD between 1.67 and 3.78%. The establishment of the method could also provide a reference for the detection of other harmful substances in textiles.

Graphical abstract: Supercritical CO2 extraction for the determination of tetrachloroethylene residues in dry-cleaned apparel

Article information

Article type
Paper
Submitted
05 Mar 2018
Accepted
30 Mar 2018
First published
09 Apr 2018

Anal. Methods, 2018,10, 2242-2250

Supercritical CO2 extraction for the determination of tetrachloroethylene residues in dry-cleaned apparel

Y. Liu, K. Fu, Q. Bao, M. Ma and W. Zhou, Anal. Methods, 2018, 10, 2242 DOI: 10.1039/C8AY00474A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements