Conductimetric and potentiometric detection in conventional and microchip capillary electrophoresis.
Potentiometric detection is rarely used in separation methods but is promising for certain classes of analytes which can only with difficulty be quantified by more standard methods. Conductimetric detection of ions is very versatile and has recently received renewed interest spurned by the introduction of the capacitively coupled contactless configuration. Both are useful and complementary alternatives to the established optical detection methods, and to the more widely known electrochemical method of amperometry. The simplicity of the electrochemical methods makes them particularly attractive for microfabricated devices, but relatively little work has to date been carried out with regard to potentiometric and conductimetric detection.
Tanyanyiwa
Jatisai
J
The University of Basel, Department of Chemistry, Basel, Switzerland.
Leuthardt
Sandro
S
Hauser
Peter C
PC
D003217:Conductometry; D019075:Electrophoresis, Capillary / Q000295:instrumentation* / Q000379:methods; D004867:Equipment Design; D007477:Ions / Q000032:analysis; D008832:Microchemistry / Q000295:instrumentation; D008839:Microelectrodes; D011199:Potentiometry; D000644:Quaternary Ammonium Compounds / Q000032:analysis
D007477:Ions; D000644:Quaternary Ammonium Compounds