Homogeneous liquid–liquid extraction and micellar electrokinetic chromatography using sweeping effect concentration system for determination of trace amounts of several polycyclic aromatic hydrocarbons
Homogeneous liquid–liquid extraction and micellar electrokinetic chromatography using sweeping effect concentration system for determination of trace amounts of several polycyclic aromatic hydrocarbons
复制标题
使用扫频浓缩系统的均相液-液萃取和胶束电动色谱法测定痕量的几种多环芳烃
DOI：
10.1007/s00216-002-1243-9
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发表时间：
2002
影响因子：
4.3
通讯作者：
S. Igarashi
中科院分区：
文献类型：
--
作者：
Y. Takagai;S. Igarashi
利用全氟表面活性剂的特殊特性，开发了一种功能强大的毛细管电泳（CE）方法，其预浓缩超过100,000倍。采用两种高效的全氟表面活性剂预富集方法，实现了多环芳烃（PAH）的高灵敏度测定和分离。两种预富集方法组合为均相液-液萃取法离线富集，扫描法在线富集。研究了五种多环芳烃(1,2,3,4-二苯并蒽、1,2,5,6-二苯并蒽、苯并（a)芘、苯并(e)芘和芘），并将其完全分离。浓度因子（体积比）为8335倍时，测定限在10 - 10 ~ 10-9mol L-1范围内。得到的最大浓度因子（体积比）为12.5万倍。对三种天然水（雨水、河水和泉水）进行了添加和回收实验。
A powerful capillary electrophoresis (CE) method, with preconcentration in excess of 100,000-fold, has been developed by using a specific characteristic of perfluoro surfactants. Highly sensitive determination and separation of polycyclic aromatic hydrocarbons (PAH) were achieved by following a combination of two kinds of efficient preconcentration method using perfluoro surfactants. The two preconcentration methods combined were homogeneous liquid–liquid extraction for off-line concentration and a sweeping method as on-line concentration. Five PAH (1,2,3,4-dibenzanthracene, 1,2,5,6-dibenzanthracene, benzo(a)pyrene, benzo(e)pyrene, and pyrene) were investigated, and were completely separated. When the concentration-factor (volume ratio) was 8335-fold, the determination limits were in the range 10–10to 10–9mol L–1. The maximum concentration-factor (volume ratio) obtained was 125,000-fold. Addition and recovery experiments were performed for three kinds of natural water (rain water, river water, and spring water).