JPH044274U

JPH044274U -

Info

Publication number: JPH044274U
Application number: JP4595190U
Authority: JP
Priority date: 1990-04-27
Filing date: 1990-04-27
Publication date: 1992-01-16

Description

[Brief explanation of drawings]

第１図は本考案を示すブロツク図、第２図は試
料容器検出と液面検出方法を示す図、第３図は動
作の一例を示すフローチヤート図、第４図は一実
施例を示す概略断面図、第５図は制御系の一実施
例を示すブロツク図である。２……プローブ、４……フローセル、６……試
料容器、８……昇降手段、１０……光学的検出手
段、１２……容器検出部、１４……液面検出部、
１６……液量判定部、１８……昇降制御部。 Fig. 1 is a block diagram showing the present invention, Fig. 2 is a drawing showing the sample container detection and liquid level detection method, Fig. 3 is a flowchart showing an example of the operation, and Fig. 4 is a schematic diagram showing one embodiment. The sectional view and FIG. 5 are block diagrams showing one embodiment of the control system. 2... Probe, 4... Flow cell, 6... Sample container, 8... Lifting means, 10... Optical detection means, 12... Container detection section, 14... Liquid level detection section,
16...Liquid amount determination section, 18...Elevation control section.

Claims

[Scope of utility model registration request]

In an autosampler that is combined with a flow-through automatic analyzer that aspirates a liquid sample from a probe into a flow cell for measurement, an elevating means that vertically raises and lowers a sample container made of a transparent material containing a liquid sample at a sample suction position; an optical detection means installed at a position higher than the maximum height of the sample liquid level when the sample container is at its lowest position at the suction position; and a signal obtained from the optical detection means to detect the sample container. a container detection unit that compares the signal obtained from the optical detection means with a container detection threshold Vt ₁ for detecting the sample liquid level; and a liquid level detection unit that compares the signal obtained from the optical detection means with a liquid level detection threshold Vt ₂ for detecting the sample liquid level. a liquid volume determination unit that determines the sample liquid volume from the ascending distance by the elevating means until the liquid level is detected, and a sample liquid level is detected after the container detection unit detects the sample container, and the liquid volume is determined to be a prescribed amount An autosampler comprising: an elevation control section that drives the elevation means upward by a distance necessary for sample suction by a probe after the liquid amount determination section has determined that the above is the case.