Liquid purification or separation – With means to add treating material – Chromatography
Patent
1991-01-11
1992-08-18
Dawson, Robert A.
Liquid purification or separation
With means to add treating material
Chromatography
73 6152, 210656, 356128, 356136, 422 70, B01D 1508, G01N 2143
Patent
active
051396610
ABSTRACT:
A critical angle refractive index detector for production liquid chromatography systems with flow rates as low as 100 ml/min to 25 l/min or higher as the system requires and pressures up to 4000 psi. The detector includes a flow cell with a sensing chamber volume selected to provide maximum detector sensitivity and minimum pressure drop at the maximum flow rate of the system for accurate discernment of critical refractive index peaks of each constituent in the sample. Explosion protected controls for zero and span settings are located to the exterior of a purged safe enclosure containing the system.
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L. R. Snyder & J. J. Kirkland, "Introduction to Modern Liquid Chromatography", John Wiley & Sons, Inc., New York (1979) pp. 123, 129-130, 636-637.
Z. Deyl, K. Macek, & J. Janak, "Liquid Column Chromatography", Elsevier, Amsterdam (1975), pp. 146-149, 151-153.
Biotage Inc.
Dawson Robert A.
Kim Sun Uk
Parker Sheldon H.
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