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    • 2. 发明申请
    • PRECONCENTRATING A SAMPLE
    • 预先采样样品
    • WO2011031559A1
    • 2011-03-17
    • PCT/US2010/047015
    • 2010-08-27
    • ASTROTECH CORPORATIONOJEDA, PedroRAFFERTY, DavidSPENCER, MichaelWYLDE, James
    • OJEDA, PedroRAFFERTY, DavidSPENCER, MichaelWYLDE, James
    • G01N1/40
    • H04R5/023A47C7/72G01N1/2214G01N1/40G01N1/405G01N27/622G01N33/0011G01N2001/022G01N2033/0019H01J49/26H04R2205/022Y10T436/255
    • A chemical analysis system is disclosed wherein, in evacuating a preconcentrator housing (2) prior to desorption, a pump system (13) reduces an internal pressure of the preconcentrator housing to a level substantially equal to an internal pressure of a chemical analyzer such that flow restrictors and/or membranes (15) between the chemical analyzer (7) and the preconcentrator housing (2) may be omitted. The chemical analysis system includes a chemical analyzer (7), a preconcentrator housing (2) coupled to the chemical analyzer, the preconcentrator housing enclosing a temperature control element (5, 18) and a sorbent material (1), the temperature control element configured to heat the sorbent material to adsorb or desorb a chemical of interest; and a pump system (13) coupled to the preconcentrator housing and the chemical analyzer, the pump system configured to evacuate the preconcentrator housing prior to desorption of the chemical of interest.
    • 公开了一种化学分析系统,其中在解吸之前抽空预浓缩器壳体(2)时,泵系统(13)将预浓缩器壳体的内部压力降低至基本等于化学分析器的内部压力的水平,使得流体 可以省略化学分析器(7)和预浓缩器壳体(2)之间的限制器和/或膜(15)。 化学分析系统包括化学分析器(7),耦合到化学分析器的预浓缩器壳体(2),包含温度控制元件(5,18)和吸附剂材料(1)的预浓缩器壳体,所述温度控制元件配置 加热吸附剂材料以吸附或解吸所关注的化学品; 以及耦合到所述预浓缩器壳体和所述化学分析器的泵系统(13),所述泵系统构造成在所述感兴趣的化学品的解吸附之前抽空所述预浓缩器壳体。