Recent developments in our laboratory belonging to two main areas of current interest, namely amperometric gas sensors and capillary electrophoresis instrumentation, are highlighted. An improved design of the former devices allows the determination of electroactive gases, such as ethylene, ethanol, and sulfur dioxide down to 1 ppb (v/v) levels. For capillary electrophoresis, a field-portable instrument with electrochemical detection was recently devised.
