Electrically floating conductivity detection system for capillary electrophoresis

Autor:	R.J. Reay, Gregory T. A. Kovacs, Rajeev Dadoo, Hui. Zhao, Richard N. Zare
Rok vydání:	1998
Předmět:	Chromatography Chemistry Capillary action Thermal conductivity detector Organic Chemistry Analytical chemistry Battery (vacuum tube) High voltage General Medicine Conductivity Biochemistry Analytical Chemistry Capillary electrophoresis Electrode Voltage
Zdroj:	Journal of Chromatography A. 813:205-208
ISSN:	0021-9673
DOI:	10.1016/s0021-9673(98)00159-9
Popis:	A conductivity detector is designed for capillary electrophoresis in which the detection electronics are isolated and float with the separation voltage applied to the capillary. This design minimizes the detrimental effect of the high voltage to the detection system and is powered using a battery. A simple arrangement is fabricated for the conductivity measurement electrodes. The electrical signal generated at these electrodes is carried through the floating electronics and then transmitted to a data-acquisition computer through a optical (infrared) serial link. As a preliminary demonstration, a sample solution containing three alkali metal ions is analyzed. The detection limits for the ions are about 2·10−6 M.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ea337c52300b367d01ff19d351e6bbce https://doi.org/10.1016/s0021-9673(98)00159-9 Zobrazit plný text záznamu Full Text from ScienceDirect