Capillary electrophoresis with contactless conductivity detection coupled to a sequential injection analysis manifold for extended automated monitoring applications

被引：58

作者：

Thanh Duc Mai ^{[1
,2
]}

Schmid, Stefan ^{[1
]}

Mueller, Beat ^{[3
]}

Hauser, Peter C. ^{[1
]}

机构：

[1] Univ Basel, Dept Chem, CH-4056 Basel, Switzerland

[2] Hanoi Univ Sci, CETASD, Hanoi 334, Vietnam

[3] Limnol Res Ctr, Swiss Fed Inst Environm Sci & Technol EAWAG, CH-6047 Kastanienbaum, Switzerland

来源：

ANALYTICA CHIMICA ACTA | 2010年 / 665卷 / 01期

基金：

瑞士国家科学基金会;

关键词：

Sequential injection analysis; Capillary electrophoresis; Capacitively coupled contactless conductivity detection; Inorganic cations and anions; SAMPLE TREATMENT; INORGANIC-IONS; CATIONS; ANIONS; SYSTEM; CE; DERIVATIZATION; NITROPHENOLS; SEPARATIONS; INSTRUMENT;

D O I：

10.1016/j.aca.2010.03.014

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

A capillary electrophoresis (CE) instrument with capacitively coupled contactless conductivity detection ((CD)-D-4) based on a sequential injection analysis (SIA) manifold was refined. Hydrodynamic injection was implemented to avoid a sampling bias by using a split-injection device based on a needle valve for precise adjustment. For safety and reliability, the integrity of the high voltage compartment at the detection end was fully maintained by implementing flushing of the high voltage interface through the capillary. With this set-up, extended fully automated monitoring applications are possible. The system was successfully tested in the field for the determination of the concentration levels of major inorganic cations and anions in a creek over a period of 5 days. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1 / 6

页数：6

共 19 条

[1] Flow injection-capillary electrophoresis coupling to automate on-line sample treatment for the determination of inorganic ions in waters [J].