A Computer-Controlled Double Beam Absorption Spectrophotometer for the Ultraviolet, Visible, and Near Infrared Regions

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A PDP 8/I computer with 8 K memory has been used to control a double beam absorption spectrophotometer for the range of 50 000 to 10 000 cm−1. Details of the optical and electronic design are given, and the principles and advantages of a computer-controlled instrument are outlined. The software is described, and some spectra demonstrating the performance of the instrument are given.

Keywords: Absorption spectroscopy; Computer applications; Ultraviolet-visible instrumentation

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/000370274774332948

Affiliations: Physical Chemistry Laboratory, Swiss Federal Institute of Technology, CH-8006 Zürich, Switzerland

Publication date: January 1, 1974

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