The Bioanalytical Systems LC-4C Amperometric Detector is an analog detector specifically designed for LC/EC, with high current sensitivity, extensive filtering, offset and autozero. In addition to front panel controls, it can also be controlled from a PC using the ChromGraph software. One advantage of PC control is that it allows potential wave forms other than fixed potential to be applied to the cell (e.g., a triple pulse wave form for PAD applications).
There are 2 channels available on the Bioanalytical Systems LC-4C Amperometric Detector - the detector channel, which applies a potential and measures the current response, and the generator channel, which can apply a potential. The detector channel is used in all experiments, whereas the generator channel is only used in experiments in which analyte is electrolyzed before reaching the detector electrode; for example, dual series electrode applications. If the current on both channels needs to be recorded, two LC-4C detectors can be combined, or an LC-4C can used in combination with a Petite Ampere.
- Amperometric Detector for Thin-Layer Flow Cells
- Two Channels - Generator and Detector
- Generator - Conducts Redox Reactions at Upstream Electrode
- Detector - High Current Sensitivity, Filtering, Offset, and Autozero
- Controlled from Front Panel or PC
Channels: Generator & Detector
Applied Potential: Generator Channel: 0 ± 1.900 V
Detector Channel: 0 ± 1.999 V
Gain: Generator Channel: 100 nA/V, 1.0 µA/V, 10 µA/V; Detector Channel: 0.1, 0.2, 0.5, 1.0, 2.0, 5.0, 10, 20, 50, 100, 200, 500 nA/V and 1, 2, 5, 10, 20, 50 µA/V; Filter Generator channel: One-pole filter, non-adjustable for each gain range
Detector Channel: Four-pole active filter with 14 settings (0.02, 0.03, 0.04, 0.05, 0.06, 0.08, 0.1, 0.15, 0.2, 0.3, 0.4, 0.5, 0.8, 1.0 Hz)
Manual Offset: Detector Channel: 0-10, 0-100, 0-1000 nA
Autozero: Detector Channel: Minimum of ± 20 times gain range setting. The rezero point is adjustable to ± 30% of the full-scale setting. Manual and autozero offsets can combine to extend range.
Output: Generator Channel: Iout: Available on terminal strip.
Detector Channel: Iout: Available on both banana jacks and the rear panel terminal strip.
Eout: Available on terminal strip.
Inputs: 2 inputs on rear panel terminal strip for control of autozero and chart marker. Use with TTL low-level and switch closure outputs on autosamplers and integrators.