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Instrument Database:
Princeton Applied Research - PAR 283
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| Year of introduction |
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| Status |
available |
| Company |
Princeton Applied Research
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| Categories |
Electrochemistry: Polarography
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The 283 is an exceptionally fast and sensitive potentiostat. With its 2 MHz frequency response, and 10 pA full-scale current range, the 283 can provide information on the smallest of microelectrodes. With its 80 V compliance and 100 mA maximum current, the Model 283 is capable of accurately controlling the potential in virtually any electrochemical cell. This high-compliance voltage ensures accurate potential control in high-resistance cells, such as those with dilute electrolytes or non-aqueous solvents. The 283 can be used with our high-sensitivity FRD units to perform Electrochemical Impedance Spectroscopy up to 2 MHz. The 283 has a fully-functional front panel for stand-alone use.
Features
- Computer-controlled Potentiostat/Galvanostat
- High input imedance (>1013 W)
- Low input capacitance (<100 pF)
- Extremely sensitive (<10-15 A resolution)
- 16 V scan range
- Fast scan capabilities and data acquisition rate
- 80 V compliance, 100 mA current output
- Large bandwidth (>2 MHz)
Applications
The Model 283 is an excellent potentiostat for measuring the impedance of very good coatings. The low capacitance and high-impedance characteristics are needed for this type of measurement. The 283 is also a great choice for making voltammetry measurements on microelectrodes, where the capacitance of the surface will be sub-nFarad. This low capacitance requires a potentiostat with extremely low-input capacitance. In addition, this will also require measurements at high frequency. The 283 is easily able to apply and measure up to 1-2 MHz required by these electrodes. For almost all applications in analytical voltammetry, the Model 283 is able to provide the scan rates and sensitivity required.
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