Capacitance meter
More information soon...
Currently I construct the 3-electrode capacitance meter (CMTR-31) for application to the capacitance detectors for the FIA and for studies of membranes on a solid support.
Features of the capacitance meter:
- element of the KSP measurement system
- programmable controlling the meter
- 3-electrode arrangement - working (WE), reference (RE), and auxiliary (AE) electrodes
- working electrode (WE) connected to the mass
- coworking with the Wenking type potentiostat and galvanostat
- coworking with the quartz crystal microbalance (QCM)
- working principle: convertion of capacitance to frequency
- programmable polarization of the working electrode
- amplitude of the measurement signal: 20 mV p-p
- current charging and discharging the capacitance: 0.5, 2.5, 10, 50 uA
- programmable selection of the current
- autocalibration
Application of the capacitance meter for studies of phenomena in supported lipid membranes
- measurement and recording capacitance
- recording capacitance-voltage characteristics
- investigations of the electrostriction phenomenon
- investigations of surface potentials
- studies of molecule absorption into the membranes
- studies of adsorption of molecules on the membrane surface
- studies of membrane complementar systems: host-guest, enzyme-substrate, ion-ligand, atibody-antigen
Software working with the capacitance meter:
- capacitance recording
- recording the capacitance-potential characteristics
- capacitance recording with the programmable electrode potential
- recording capacitance and mass (QCM) in the same time - under development
- FIA measurements with capacitance detector (controliing solenoid valves) - under development
Setup for experiments with capacitance and microgravimetric measurements
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The device for experiments with capacitance and microgravimetric measurements |
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The setup for electrochermical experiments |