Optimization of variables on the supercritical fluid extraction of phthalate plasticizers

被引：35

作者：

Marin, ML

Jimenez, A ^{[1
]}

Berenguer, V

Lopez, J

机构：

[1] Univ Alicante, Dept Analyt Chem, E-03080 Alicante, Spain

[2] AIJU, Inst Toys Technol, Alicante 03440, Spain

来源：

JOURNAL OF SUPERCRITICAL FLUIDS | 1998年 / 12卷 / 03期

关键词：

supercritical fluid extraction; phthalates; PVC; temperature; pressure;

D O I：

10.1016/S0896-8446(98)00086-2

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 [物理化学]; 081704 [应用化学];

摘要：

Supercritical fluid extraction (SFE) has become an important and useful technique to prepare samples before analysis. The use of supercritical CO2 yields a rapid and quantitative extraction of phthalate plasticizers added to poly(vinyl chloride) (PVC) products. One of them is the plasticized PVC which is a material commonly used in toy manufacturing and other industries. SFE conditions affecting the extraction efficiency have been studied and optimized when pure CO2 is used. Firstly, the influence of the sample particle size in the extraction process has been studied. A fast and quantitative extraction is obtained when the surface/volume ratio of the sample is increased. In addition, the influence of temperature, pressure and time for different phthalates has been studied. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：271 / 277

页数：7

共 18 条

[1]

SUPERCRITICAL FLUID EXTRACTION FOR THE RAPID-DETERMINATION OF POLYCHLORINATED DIBENZO-PARA-DIOXINS AND DIBENZOFURANS IN MUNICIPAL INCINERATOR FLY-ASH [J].