Abstract: The invention relates to methods of preparation of highly sensitive potentiometric sensors with an electroconductive polymer film as a sensing element.

Abstract: A method of electrochemical analysis using a sensor electrode specific for an analyte under test. The method comprises immersing the sensor electrode in a sample solution suspected of containing the analyte; forming an electrochemically active complex by exposure to solutions containing secondary receptors or competing molecules labelled with a charged or enzyme label; and subsequently exposing the sensor to an electrochemically active solution. The measurement step comprises driving the sensor electrode potential to a predetermined fixed potential by applying a current or activation waveform then monitoring the potential difference between the sensor electrode and a reference electrode following removal of the holding current. Current, rate and potential can all be measured and used to determine analyte concentration or sensor state.

Abstract: An animal control system, including at least one transducer assembly intimately associated with an animal, and at least one control unit, wherein the control unit contains at least one assembly that includes on-board data, and the control unit is configured to a) receive data from the transducer assembly, and b) assess the received data with respect to the on-board data, and c) formulate and transmit a command to an appropriate transducer assembly; the system characterized in that the control unit is functionally separated from both actuation of the command and from the transducer assembly or assemblies.

Abstract: A method of electrochemical analysis using a sensor electrode specific for an analyte under test. The method comprises immersing the sensor electrode in a sample solution suspected of containing the analyte; forming an electrochemically active complex by exposure to solutions containing secondary receptors or competing molecules labelled with a charged or enzyme label; and subsequently exposing the sensor to an electrochemically active solution. The measurement step comprises driving the sensor electrode potential to a predetermined fixed potential by applying a current or activation waveform then monitoring the potential difference between the sensor electrode and a reference electrode following removal of the holding current. Current, rate and potential can all be measured and used to determine analyte concentration or sensor state.

Abstract: Method and apparatus for testing a milk for mastitis wherein the milk sample is admixed with a detergent under condition that increase the viscosity of the milk sample; the increased viscosity mixture is subjected to a further procedure for further increasing its viscosity; and the further increased viscosity mixture is then tested for an attribute of somatic cells, such as DNA. This determination is then used to establish if the cow from whom the milk came has mastitis.

Abstract: An animal control system, including at least one transducer assembly intimately associated with an animal, and at least one control unit, wherein the control unit contains at least one assembly that includes on-board data, and the control unit is configured to receive data from the transducer assembly, and assess the received data with respect to the on-board data, and formulate and transmit a command to an appropriate transducer assembly; the system wherein the control unit is functionally separated from both actuation of the command and from the transducer assembly or assemblies.