Trace sampling
    4.
    发明授权
    Trace sampling 失效
    跟踪采样

    公开(公告)号:US07666356B2

    公开(公告)日:2010-02-23

    申请号:US11425313

    申请日:2006-06-20

    IPC分类号: G01N1/24 G01N21/00

    摘要: A trace sampling detection system includes a gathering device configured to gather particles through a handle-bar, a gate and an air-stream gatherer. A collection tube is configured to deposit gathered particles from the gathering device onto a portion of a sample media. A carousel wheel that includes the sample media is configured to rotate the sample wheel such that the portion of the sample media including the gathered particles is presented to an exothermic decomposition detector that detects, through an infrared sensor, the decomposition of the gathered particles.

    摘要翻译: 轨迹采样检测系统包括:收集装置,其被配置成通过手柄条,门和空气流收集器收集颗粒。 收集管被配置为将收集的颗粒从收集装置沉积到样品介质的一部分上。 包括样品介质的转盘轮被配置为旋转样品轮,使得包含聚集的颗粒的样品介质的部分被呈现给放热分解检测器,其通过红外传感器检测聚集的颗粒的分解。

    Vapor and particle sampling
    9.
    发明授权
    Vapor and particle sampling 失效
    蒸气和颗粒取样

    公开(公告)号:US5760314A

    公开(公告)日:1998-06-02

    申请号:US701314

    申请日:1996-08-21

    摘要: A sampling apparatus collects sample air from a subject such as a person. The apparatus includes a bypass that divides the sample air stream into a bypass portion and a collector portion. The collector portion of the air stream is delivered to a collector, which traps entrained particles. After the sampling cycle concludes, a mechanical conveyor removes the collector from fluid communication with the bypass and transports it to a analyzing unit. A chamber in the unit receives the collector, and a diverter couples the chamber with either of two vapor and/or particle analyzers. During analysis, a heater in the unit heats both the chamber and the diverter. A sample collected from one subject can be analyzed in one of the analyzers while another sample is being collected from another subject. The other analyzer can then be used to analyze the second sample.

    摘要翻译: 采样装置从诸如人的对象收集样品空气。 该装置包括将样品空气流分成旁路部分和收集器部分的旁路。 空气流的收集器部分被传送到收集器,捕集夹带的颗粒。 采样周期结束后,机械传送器将收集器与旁路流体连通并将其传送到分析单元。 该单元中的室接收收集器,并且分流器将室与两个蒸气和/或颗粒分析器中的任一个耦合。 在分析过程中,单元中的加热器加热室和分流器。 从一个受试者收集的样品可以在其中一个分析仪中进行分析,而另一个样品从另一个受试者收集。 然后可以使用另一个分析仪来分析第二个样品。

    Ion analyzer calibration cell
    10.
    发明授权
    Ion analyzer calibration cell 失效
    离子分析仪校准单元

    公开(公告)号:US4600494A

    公开(公告)日:1986-07-15

    申请号:US647313

    申请日:1984-09-04

    IPC分类号: G01N27/28 G01N27/416

    CPC分类号: G01N27/28 G01N27/4165

    摘要: Apparatus for calibrating an ion analyzer comprises a calibration cell having defined therein a first volume for measuring an ion concentration of a sample when the instrument is operated in a monitoring and a second volume for measuring the ion concentration when the instrument is operated in a calibration mode. The first volume is included in, and forms part of, the second volume so that the matrix for the calibration measurement is essentially identical to that for the sample measurement. A double known-addition is used during the calibration mode to determine the calibration parameters.

    摘要翻译: 用于校准离子分析仪的装置包括校准单元,其中限定有用于当仪器在监视中操作时用于测量样品的离子浓度的第一体积和用于在仪器以校准模式操作时测量离子浓度的第二体积 。 第一个体积被包含在第二个体积中并形成第二个体积的一部分,因此用于校准测量的矩阵基本上与样品测量的相同。 在校准模式下使用双重已知添加物来确定校准参数。