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Clinical Chemistry 16: 626-632, 1970;
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Clinical Chemistry, Vol 16, 626-632, Copyright © 1970 by the American Association for Clinical Chemistry

Miniature Photometers for Liquid Chromatography

L. H. Thacker 1, W. Wilson Pitt Jr. 1, S. Katz 1, and Charles D. Scott 1

1 Oak Ridge National Laboratory, Oak Ridge, Tenn. 37830. (Operated for the U. S. AEC by Union Carbide Corp.)

A series of miniature photometers has been developed for use as on-stream detectors in systems for liquid chromatography. All of the detectors feature dual-beam, dual-wavelength operation without mechanical or electrical switching of either wavelength or signal. The two types of detectors originally developed—ultraviolet (254 and 280 nm) and colorimetric (any two choices of visible wavelengths)—have been integrated into a single modular instrument that can be converted from ultraviolet to use with visible wavelengths by substituting source and filter modules. Both straight-through vertical quartz tube flow cells of 3-mm i.d. and Z-cell modules with 10-mm light pathlengths are available. A single-unit power-source and rangeswitching box is used with any configuration of the detector.


Key Words: liquid chromatography, visible and uv range • quartz cells • Beckman and Technicon spectrophotometers • operational tests




The following articles in journals at HighWire Press have cited this article:


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 ScienceHome page
C. D. Scott
High-Pressure Ion Exchange Chromatography
Science, October 18, 1974; 186(4160): 226 - 233.
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Copyright © 1970 by the American Association for Clinical Chemistry.