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Measurement and Analysis of Atomic Hydrogen and Diatomic Molecular AlO, C2, CN, and TiO Spectra Following Laser-induced Optical Breakdown

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Versatile IEEE-488 data acquisition and control routines for a diode array spectrophotometer.

P M Shiundu¹, A P Wade

¹Laboratory for Automated Chemical Analysis Chemistry Department University of British Columbia 2036 Main Mall. Vancouver British Columbia V6T 1Y6 Canada.

The Journal of Automatic Chemistry

|January 1, 1991

Summary

This summary is machine-generated.

This study presents simple data acquisition and control routines for the HP-8452A UV-visible diode array spectrophotometer. These routines enable full spectrum capture and absorbance measurements over time using an IBM compatible microcomputer.

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Area of Science:

Analytical Chemistry
Spectroscopy
Laboratory Automation

Background:

UV-visible diode array spectrophotometers are essential laboratory tools.
Efficient data acquisition and instrument control are crucial for experimental success.

Purpose of the Study:

To develop simple data acquisition and control routines for the HP-8452A spectrophotometer.
To enable microcomputer interfacing for enhanced experimental control and data capture.

Main Methods:

Utilized Microsoft QuickBasic for programming.
Developed routines for interfacing an HP-8452A spectrophotometer with IBM PC/XT/AT compatible microcomputers.
Implemented functions for full spectrum capture and time-interval absorbance measurements.

Main Results:

Successfully created routines for capturing full spectra.
Enabled measurement of absorbance at specific wavelengths over preset time intervals.
Provided an option to calculate absorbance variance at each wavelength.

Conclusions:

The developed routines offer a straightforward method for controlling the HP-8452A spectrophotometer.
This facilitates automated data collection and analysis in laboratory settings.
The software enhances the utility of the spectrophotometer for kinetic and spectral studies.