Flow cell device

Abstract

PURPOSE: To set a sample conveyance quantity equally to the content of a cell and to use a sample effectively by detecting a break of sample liquid in a feeding flow passage in front of the flow cell and removing entering air bubbles. CONSTITUTION: A liquid feeding means 2 feeds the sample liquid 4 to the flow passage (a) by 0.4ml in 0.8 second from the start of feeding. Then a liquid feeding means control part 6 switches the speed of the means 2 and operates an air bubble detecting means 5. The sample liquid is fed by 0.1ml in one second from the switching. Then when the means 5 detects an air layer due to a liquid break, the means 2 is stopped according to the detection output and the means 2 is driven reversely. This reverse driving is carried out until the liquid 4 is fed backward in the flow passage (a) and the air-layer detection signal from the means 5 is ceased. Consequently, the air layer entered into the flow cell 3 is discharged from the cell 3, which is filled with the liquid 4. COPYRIGHT: (C)1990,JPO&Japio

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Cited By (3)

    Publication numberPublication dateAssigneeTitle
    JP-2013057580-AMarch 28, 2013Konica Minolta Holdings Inc, コニカミノルタホールディングス株式会社Measuring device and method for performing measuring
    JP-2015127719-AJuly 09, 2015コニカミノルタ株式会社, Konica Minolta IncMeasurement device and method for performing measurement
    JP-H04231848-AAugust 20, 1992Showa Denko KkMethod, apparatus and cell for detecting optical rotation