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    • 3. 发明授权
    • Disposable titration device
    • 一次性滴定装置
    • US4332769A
    • 1982-06-01
    • US185978
    • 1980-09-10
    • Gordon A. RampyHenry B. Castaneda
    • Gordon A. RampyHenry B. Castaneda
    • B01L3/00G01N31/16
    • B01L3/50
    • A device for quantitative analysis of fluids which consists of a rigid, transparent tube containing a predetermined quantity of reagent and end-point indicator, evacuated and fitted with a valve which is suitable for sealing and for precisely controlling the entry of sample fluid so that upon immersion of the valve in the sample fluid and opening and closing it as desired, a quantity of sample fluid may be introduced to the tube and mixed with the reagent contained therein which is precisely the amount necessary to cause a visible change indicating complete neutralization of the reagent. The amount of material being analyzed for can then be ascertained by measuring the amount of sample fluid introduced and applying a simple mathematical formula.
    • 用于定量分析流体的装置,其由含有预定量的试剂和终点指示剂的刚性透明管组成,抽空并装配有适于密封和精确控制样品流体入口的阀, 将阀浸入样品流体中并根据需要打开和关闭,可以将一定量的样品流体引入管中并与其中包含的试剂混合,其中精确地是引起可见变化所需的量,表明完全中和 试剂。 然后可以通过测量引入的样品流体的量并应用简单的数学公式来确定待分析材料的量。