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Interfacing a Cary 210 spectrophotometer to a Commodore PET 2001 microcomputer

Authors
Journal
Journal of Automatic Chemistry
0142-0453
Publisher
Hindawi Publishing Corporation
Publication Date
Volume
8
Issue
1
Identifiers
DOI: 10.1155/s1463924686000081
Keywords
  • Research Article
Disciplines
  • Chemistry

Abstract

Journal of Automatic Chemistry of Clinical Laboratory Automation, Volume 8, Number 1 (January-March 1986), pages 32-34 Interfacing a Cary 210 spectrophotometer to a Commodore PET 2001 microcomputer D. Migneault, R. Mattera and R. K. Forc6 University of Rhode Island, Chemistry Department, Kingston, Rhode Island 02881, USA Introduction The use of microcomputers for instrument control and data acquisition has become an important aspect of the chemical laboratory. The availability of inexpensive microcomputers, the ease of interfacing with existing chemical instrumentation, and the availability of such high-level languages as BASIC, all make such applica- tions attractive and feasible to implement. A considerable amount of well-built instrumentation without micro- processor control exists and will be with us for some time. Interfacing brings this instrumentation into the current age at a cost far below that of purchasing a new instrument. The authors have been acquiring UV scans by means ofa simple microcomputer interface for some time. Benefits include a greater precision than is possible by hand digitizing, more facile data handling of larger data-bases, and, consequently, the acquisition ofa much higher point density in each scan. High point density is an important consideration in such statistical procedures as factor analysis. Once the data is acquired by the microcomputer it can be processed by the same processor or passed along by a modem or RS232 interface to another more powerful computer. This paper reports a method of interfacing a Cary 210 spectrophotometer (Varian Associates, Inc., 611 Hansen Way, Palo Alto, California 94303, USA) to a PET 2001 microcomputer (Commodore Business Machines, 201 California Avenue, Palo Alto, California 94303, USA). The interface is accomplished through the memory expansion port of the PET and utilizes a MCS-6522 Versatile Interface Adapter (MOS Technology, Inc., Valley Forge Corporate Center, 950 R. Henhouse Road, Norristown, Pennsylvania 19401, USA). The in

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