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Two‐Barrel Bile‐Acids‐Sensitive Microelectrodes Based on Liquid Ion Exchanger
Author(s) -
Bi Yu,
WenBin Hong
Publication year - 1990
Publication title -
biotechnology progress
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.572
H-Index - 129
eISSN - 1520-6033
pISSN - 8756-7938
DOI - 10.1021/bp00001a010
Subject(s) - microelectrode , chemistry , hexachlorobenzene , chromatography , barrel (horology) , calibration curve , ion exchange , ion , analytical chemistry (journal) , electrode , detection limit , materials science , organic chemistry , pollutant , composite material
Abstract Several liquid membrane microelectrodes sensitive to bile acids (two barrel, tip diameter about 0.5 μm) are described. The results of different liquid ion exchangers such as Aliquat 336/decanol, trioctylmethylammonium/decanol, hexadecyltrimethylammonium/ decanol, benzyldimethylhexadecylammonium/ decanol, hexadecyltributylammonium/5% hexachlorobenzene + 0.5% bromoacetanilide in o‐dichlorobenzene are compared with each other, and the better one among them is the mixture of benzyldimethylhexadecylammonium cholate/decanol with hexadecyltributylammonium taurocholate/5% hexachlorobenzene + 0.5% bromoacetanilide in o‐dichlorobenzene because of its quicker response time and low drift. The calibration curves, slopes, test limits, selective coefficients, drifts, and response times of the various bile‐acids‐sensitive microelectrodes in different calibration solutions were demonstrated and compared with each other.