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    • 61. 发明授权
    • Liquid sample cell for an optical measurement apparatus
    • 用于光学测量装置的液体样品池
    • US5815258A
    • 1998-09-29
    • US800386
    • 1997-02-14
    • Hiroaki Nakanishi
    • Hiroaki Nakanishi
    • G01N21/64G01N21/05G01N21/27G01N27/447G01N30/74
    • G01N30/74G01N21/05G01N2021/0346G01N2030/746
    • A liquid sample cell used in an optical measurement apparatus in which a liquid sample flows through a flow path of the sample cell while a measurement light travels through the liquid sample in the flow path. The liquid sample cell is composed of: a first glass plate and a second glass plate fixed to each other; a groove for constituting the flow path formed in the first glass plate by a photolithographic method; reflection layers formed on the internal surface of the groove and on the internal surface of the other glass plate; and an entrance window and an exit window formed in the reflection layers to let the measurement light into the flow path and to let the measurement light out from the flow path. The measurement light is reflected by the reflection layers many times in the flow path. Since the measurement light travels a long distance in the liquid sample, the sensitivity of the optical measurement is improved, while the capacity of the flow path is minimized preventing diffusion or mixture of components separated by a chromatographic column, for example.
    • 用于光学测量装置中的液体样品池,其中液体样品在测量光通过流路中的液体样品时流过样品池的流动路径。 液体样品池由相互固定的第一玻璃板和第二玻璃板组成, 用于通过光刻法形成在第一玻璃板中形成的流路的槽; 形成在槽的内表面和另一玻璃板的内表面上的反射层; 以及形成在反射层中的入口窗口和出射窗口,以使测量光进入流路并使得测量从流动路径射出。 测量光在流路中多次被反射层反射。 由于测量光在液体样品中行进长距离,所以提高了光学测量的灵敏度,而流路的容量被最小化,从而防止例如由色谱柱分离的组分的扩散或混合物。