公开(公告)号：US09746450B2

公开(公告)日：2017-08-29

申请号：US14498095

申请日：2014-09-26

Applicant: Rosemount Analytical Inc.

Inventor： Shane R. Hale ,  John R. Beavers

IPC: G01N33/00 ,  G01N30/02 ,  G01N30/86 ,  G01N30/88

CPC classification number: G01N33/0006 ,  G01N30/8665 ,  G01N2030/025 ,  G01N2030/8886

Abstract: An online gas chromatograph is provided. The online gas chromatograph includes a sample inlet and at least one chromatographic column operably coupled to the sample inlet. At least one valve is interposed between the sample inlet and the at least one chromatographic column. A detector is fluidically coupled to the at least one chromatographic column. A controller is coupled to the detector and to the at least one valve, the controller is configured to control flow from the sample inlet through the chromatograph using the at least one valve. The controller is configured to generate a plurality of sequential calibration cycles, where each calibration cycle has a calibration gas purge operation. The first calibration gas purge operation lasts longer than the second calibration gas purge operation.

公开(公告)号：US20150293066A1

公开(公告)日：2015-10-15

申请号：US14498095

申请日：2014-09-26

Applicant: Rosemount Analytical Inc.

Inventor： Shane R. Hale ,  John R. Beavers

IPC: G01N33/00 ,  G01N30/02

CPC classification number: G01N33/0006 ,  G01N30/8665 ,  G01N2030/025 ,  G01N2030/8886

Abstract: An online gas chromatograph is provided. The online gas chromatograph includes a sample inlet and at least one chromatographic column operably coupled to the sample inlet. At least one valve is interposed between the sample inlet and the at least one chromatographic column. A detector is fluidically coupled to the at least one chromatographic column. A controller is coupled to the detector and to the at least one valve, the controller is configured to control flow from the sample inlet through the chromatograph using the at least one valve. The controller is configured to generate a plurality of sequential calibration cycles, where each calibration cycle has a calibration gas purge operation. The first calibration gas purge operation lasts longer than the second calibration gas purge operation.

Abstract translation: 提供在线气相色谱仪。 在线气相色谱仪包括样品入口和至少一个可操作地连接到样品入口的色谱柱。 在样品入口和至少一个色谱柱之间插入至少一个阀。 检测器流体耦合到至少一个色谱柱。 控制器耦合到检测器和至少一个阀，控制器被配置成使用至少一个阀来控制从样品入口通过色谱仪的流动。 控制器被配置为产生多个顺序校准循环，其中每个校准周期都具有校准气体清洗操作。 第一次校准气体吹扫操作比第二次校准气体吹扫操作持续更长时间。