公开(公告)号：US5644070A

公开(公告)日：1997-07-01

申请号：US636159

申请日：1996-04-22

申请人： Dennis A. Gibboney ,  Paul A. Bauer, Jr.

发明人： Dennis A. Gibboney ,  Paul A. Bauer, Jr.

IPC分类号： A61L2/20 ,  C01B13/10 ,  G01N29/024 ,  G01N29/30 ,  G01N29/32 ,  G01N33/00 ,  G01N29/18 ,  A61L9/00

CPC分类号： C01B13/10 ,  A61L2/202 ,  G01N29/024 ,  G01N29/30 ,  G01N29/326 ,  G01N33/0039 ,  G01N2291/02881

摘要： An ozone concentration sensor for use with an ozone generator. The ozone free feed gas to the ozone generator is briefly fed to the sensor which measures both the temperature of the feed gas and the time it takes a high frequency sound pulse to travel a predetermined distance in the feed gas for reference date. A portion of the output gas from the ozone generator is then fed to the sensor and the same measurements are made for the output gas. A programmed microcomputer determines the ozone concentration in the output gas from the measurements. In one embodiment, the sensor constantly receives output gas from the ozone generator. The reference measurements are made while operation of the ozone generator is briefly interrupted and feed gas passes through the ozone generator unchanged. Reference measurements may be stored and used for repeated ozone concentration calculations, so long as there is no significant change in the feed gas.

摘要翻译： 用于臭氧发生器的臭氧浓度传感器。 将臭氧发生器的无臭氧进料气体短暂地送入传感器，该传感器测量进料气体的温度和用于参考日期的进料气体中高频声脉冲行进预定距离的时间。 然后将来自臭氧发生器的输出气体的一部分供给到传感器，并且对于输出气体进行相同的测量。 编程的微型计算机根据测量结果确定输出气体中的臭氧浓度。 在一个实施例中，传感器不断接收来自臭氧发生器的输出气体。 在臭氧发生器的操作被短暂中断并且进料气体通过臭氧发生器不变的情况下进行参考测量。 只要进料气体没有显着的变化，参考测量可以被存储并用于反复的臭氧浓度计算。

公开(公告)号：US5866004A

公开(公告)日：1999-02-02

申请号：US524916

申请日：1995-09-08

申请人： Raymond K. Houck ,  Douglas J. Koebler ,  Glen P. Williams ,  Kenneth J. Kato ,  Robert D. Parks ,  Paul A. Bauer, Jr.

发明人： Raymond K. Houck ,  Douglas J. Koebler ,  Glen P. Williams ,  Kenneth J. Kato ,  Robert D. Parks ,  Paul A. Bauer, Jr.

IPC分类号： B01D11/02 ,  B01D15/08 ,  G01N1/34 ,  G01N1/40 ,  G01N30/06 ,  G01N33/24 ,  B01D11/00

CPC分类号： G01N1/34 ,  B01D11/0203 ,  G01N2001/4061 ,  G01N2030/062 ,  G01N33/24 ,  Y10T436/255

摘要： A supercritical fluid extraction (SFE) system. The SFE system includes a mechanism for providing supercritical fluid for extracting analyte from a sample. The SFE system also includes an extraction vessel and a mechanism for moving the extraction vessel into fluidic communication with the SFE system so that supercritical fluid can flow through the extraction vessel and extract analyte from the sample. Preferably, the SFE system is additionally comprised of a mechanism for holding a plurality of extraction vessels and an extraction chamber assembly. In this design, the moving mechanism selectively moves an extraction vessel from the holding mechanism into the extraction chamber in fluidic communication with the SFE system. Preferably, the SFE system further includes a computer for controlling the functions of the SFE system. The computer, for instance, could automatically and sequentially control the supercritical fluid extractions of the samples within the holding mechanism. The SFE system preferably includes a mechanism for collecting analyte from the fluid with analyte. The collecting mechanism is in fluid communication with extraction chamber assembly and preferably includes a restrictor for controlling the flow of fluid with analyte to the collecting mechanism. The restrictor converts the fluid with analyte from a first supercritical pressure to a second pressure which is less than the first supercritical pressure.

摘要翻译： 超临界流体萃取（SFE）系统。 SFE系统包括提供用于从样品中提取分析物的超临界流体的机制。 SFE系统还包括提取容器和用于将提取容器移动到与SFE系统流体连通的机构，使得超临界流体可以流过提取容器并从样品中提取分析物。 优选地，SFE系统还包括用于保持多个提取容器和提取室组件的机构。 在该设计中，移动机构选择性地将提取容器从保持机构移动到与SFE系统流体连通的提取室中。 优选地，SFE系统还包括用于控制SFE系统的功能的计算机。 例如，计算机可以自动和顺序地控制保持机构内的样品的超临界流体萃取。 SFE系统优选地包括用于从具有分析物的流体收集分析物的机构。 收集机构与提取室组件流体连通，并且优选地包括限制器，用于控制具有分析物的流体与收集机构的流动。 限流器将具有分析物的流体从第一超临界压力转换为小于第一超临界压力的第二压力。