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    • 3. 发明授权
    • Method and apparatus for assaying enzymatic reaction
    • 用于测定酶反应的方法和装置
    • US5905030A
    • 1999-05-18
    • US77928
    • 1998-06-05
    • Shigetoshi OkazakiHiroyuki Matsumoto
    • Shigetoshi OkazakiHiroyuki Matsumoto
    • G01N21/552C12Q1/34C12Q1/00
    • G01N21/552
    • A method and apparatus for measuring enzyme activity by supplying a substrate solution and an enzyme solution into a reaction vessel combined with a total reflection absorption prism is disclosed. A measurement solution (40) in which the enzyme solution and the substrate solution are combined together is kept at a constant temperature within the reaction vessel (26) by a temperature control unit (23), and is stirred by a stirrer (21). Infrared light (36) emitted from an infrared light source (3) is made incident on the interface between a total reflection absorption prism (28) disposed in contact with the measurement solution (40) and the measurement solution (40) from the side of the total reflection absorption prism (28) and is totally reflected by the interface. The spectrum of transmitted infrared light (37) thus totally reflected and emitted is detected by an infrared light detector (5). According to thus detected spectrum, a change in the infrared absorption spectrum or absorbance is determined, whereby the enzyme reaction in the measurement solution (40) is measured.
    • PCT No.PCT / JP97 / 00513 Sec。 371日期:1998年6月5日 102(e)1998年6月5日PCT 1997年2月24日提交PCT公布。 出版物WO97 / 32198 日期1997年8月4日公开了一种通过将底物溶液和酶溶液供给到与全反射吸收棱镜结合的反应容器中来测量酶活性的方法和装置。 将酶溶液和底物溶液组合在一起的测量溶液(40)通过温度控制单元(23)在反应容器(26)内保持恒定温度,并通过搅拌器(21)搅拌。 从红外光源(3)发射的红外光(36)入射到与测量溶液(40)接触设置的全反射吸收棱镜(28)和测量溶液(40)之间的界面上, 全反射吸收棱镜(28),并被界面全反射。 由红外光检测器(5)检测由此全反射和发射的透射红外光(37)的光谱。 根据如此检测的光谱,测定红外吸收光谱或吸光度的变化,由此测量测量溶液(40)中的酶反应。