Automated Circular Dichroism Spectropolarimeter
Author Information
Author(s): Victor C. Zadnik, Karl H. Pearson, Robert Megargle
Primary Institution: Cleveland State University
Hypothesis
The automation of the Cary 61 CD spectropolarimeter will improve the accuracy and efficiency of circular dichroism measurements.
Conclusion
The microcomputer automated CD spectropolarimeter system provides accurate, reproducible, and efficient data collection and analysis.
Supporting Evidence
- The automated system showed excellent agreement with manual measurements.
- Reproducibility was less than 0.2% of full scale in all cases.
- The system reduced the time required for data collection significantly.
Takeaway
This study shows how a computer can help measure and analyze light patterns in substances, making it faster and more accurate.
Methodology
The Cary 61 spectropolarimeter was automated using a microcomputer for data acquisition and control, allowing for improved measurement and analysis of circular dichroism.
Limitations
The accuracy of wavelength measurement was limited to ±0.35 nm, which may not be sufficient for all studies.
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