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    • 73. 发明授权
    • Method for apparatus for metering liquid samples
    • 液体样品计量装置的方法
    • US4869116A
    • 1989-09-26
    • US136888
    • 1987-12-22
    • Pierre-Andre MeyratAlain OppligerDenis Steiner
    • Pierre-Andre MeyratAlain OppligerDenis Steiner
    • G01F11/02G01F11/10G01N35/10
    • G01F11/10G01F11/021G01N35/10G01N2035/1006
    • First and second containers (R1; R2) are successively brought to a transvasation or decanting station (C) in which the samples are metered. For this purpose, a piston (17) is mounted so as to be able to penetrate each first container (R1), which can be lifted, when it enters the decanting station (C). The quantity of sample in the first container (R1) is greater than the quantity to be precisely metered which is poured into the second container (R2) by means of a pouring assembly (24 to 36) situated above it. A pouring member (40) may be placed between the second container and the pouring assembly. Thus, when the first container acts as cylinder on the piston (17), a first quantity of the sample rinses the transvasation or decanting circuit to eliminate any residue of a preceding sample, while the pouring member is located between the pouring assembly (24 to 36) and the second container, then an exactly metered quantity of the sample is poured into the second container after withdrawal of the pouring member ( 40).
    • 第一和第二容器(R1; R2)被连续地送到其中样品被计量的渗流或倾析站(C)。 为此,活塞(17)安装成能够穿过能够被提升的每个第一容器(R1),当它进入倾析站(C)时。 第一容器(R1)中的样品量大于通过位于其上方的浇注组件(24至36)注入到第二容器(R2)中的要精确计量的量。 浇注构件(40)可以放置在第二容器和倾倒组件之间。 因此,当第一容器作为活塞(17)上的气缸时,第一量的样品冲洗变速或倾析回路以消除前述样品的任何残留物,同时倾倒构件位于浇注组件(24至 36)和第二容器,则在倾倒部件(40)取出之后,将精确计量的样品倒入第二容器中。