Toribio L, del Nozal M J, Bernal J L, Jiménez J J, Serna M L
Department of Analytical Chemistry, Faculty of Sciences, University of Valladolid, Spain.
J Chromatogr A. 1998 Oct 9;823(1-2):163-70. doi: 10.1016/s0021-9673(98)00300-8.
A multiresidue method for the analysis of 35 common contaminants (including pesticides, polycyclic aromatic hydrocarbons and phenols) in lough and river waters from Castilla y León Spanish region, by using supercritical fluid chromatography (SFC) with five silica packed columns, is described. In order to decrease the detection limits, a preconcentration step by coupling solid-phase extraction to the SFC system was used. The different variables affecting the extraction procedure were studied and optimized, selecting the Isolute Env+ as the best sorbent. The detection limits achieved ranged from 0.4 to 2.6 micrograms l-1.
本文描述了一种多残留分析方法，用于分析西班牙卡斯蒂利亚-莱昂地区湖泊和河水中的35种常见污染物（包括农药、多环芳烃和酚类），该方法采用超临界流体色谱（SFC）结合五根硅胶填充柱。为了降低检测限，采用了固相萃取与SFC系统联用的预浓缩步骤。研究并优化了影响萃取过程的不同变量，选择Isolute Env+作为最佳吸附剂。实现的检测限范围为0.4至2.6微克/升。
