发明授权
- 专利标题: System for regulating fluid flowing through chromatographic column
- 专利标题(中): 用于调节流经色谱柱的流体的系统
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申请号: US11751327申请日: 2007-05-21
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公开(公告)号: US08297107B2公开(公告)日: 2012-10-30
- 发明人: Andrew Tipler , Richard G. Edwards , Michael Paul Dinsmore
- 申请人: Andrew Tipler , Richard G. Edwards , Michael Paul Dinsmore
- 申请人地址: US MA Waltham
- 专利权人: PerkinElmer Health Sciences, Inc.
- 当前专利权人: PerkinElmer Health Sciences, Inc.
- 当前专利权人地址: US MA Waltham
- 代理机构: St. Onge Steward Johnston & Reens LLC
- 主分类号: G01N30/04
- IPC分类号: G01N30/04
摘要:
Disclosed are systems and methods that include a sampling device, a chromatographic column, and a transfer line through which a fluid containing analytes to be measured are communicated from the sampling device to the column. The pressure at which the fluid containing the analytes is applied at the inlet of the transfer line is adjusted as the temperature of the column increases in accordance with certain relationships in order to maintain a substantially constant flow rate or velocity for the fluid exiting the column. In this way, the system compensates for changes in the viscosity of the fluid flowing through the column that result from changes in the column temperature.