专利内容由知识产权出版社提供
专利名称：Pump as a pressure source for supercritical
fluid chromatography involving pressureregulators and a precision orifice
发明人：Terry A. Berger,Kimber D.
Fogelman,Kenneth Klein,L. Thompson Staats,III,Mark Nickerson,Paul F. Bente, III
申请号：US10117984申请日：20020405公开号：US068609B2公开日：20031118
专利附图：
摘要：The invention is a device and method in a high-pressure chromatographysystem, such as a supercritical fluid chromatography (SFC) system, that uses a pump as apressure source for precision pumping of a compressible fluid. The preferred exemplaryembodiment comprises a pressure regulation assembly installed downstream from acompressible fluid pump but prior to combining the compressible flow with a relativelyincompressible modifier flow stream. The present invention allows the replacement of anhigh-grade SFC pump in the compressible fluid flow stream with an inexpensive andimprecise pump. The imprecise pump becomes capable of moving the compressible fluidflow stream in a precise flow rate and pattern. The assembly dampens the damagingeffects of an imprecise pump, such as large pressure oscillations caused by flow ripplesand noisy pressure signals that do not meet precise SFC pumping requirements.
申请人：BERGER INSTRUMENTS, INC.
代理机构：ZITO tlp
代理人：Joseph J. Zito
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