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1. CN1454316 - Liquid dispensing method and device

Office
China
Application Number 00819714.8
Application Date 30.06.2000
Publication Number 1454316
Publication Date 05.11.2003
Grant Number 1193234
Grant Date 16.03.2005
Publication Kind C
IPC
G01N 1/00
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
1Sampling; Preparing specimens for investigation
G01N 35/10
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
35Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/-G01N33/148; Handling materials therefor
10Devices for transferring samples to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
CPC
B01L 3/021
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
3Containers or dishes for laboratory use, e.g. laboratory glassware
02Burettes; Pipettes
021Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
B01L 3/0241
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
3Containers or dishes for laboratory use, e.g. laboratory glassware
02Burettes; Pipettes
0241Drop counters; Drop formers
B01L 2200/14
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
2200Solutions for specific problems relating to chemical or physical laboratory apparatus
14Process control and prevention of errors
B01L 2300/10
BPERFORMING OPERATIONS; TRANSPORTING
01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
LCHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
2300Additional constructional details
10Means to control humidity and/or other gases
G01N 35/1016
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
35Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
10Devices for transferring samples ; or any liquids; to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
1009Characterised by arrangements for controlling the aspiration or dispense of liquids
1016Control of the volume dispensed or introduced
G01N 2035/1025
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
35Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
10Devices for transferring samples ; or any liquids; to, in, or from, the analysis apparatus, e.g. suction devices, injection devices
1009Characterised by arrangements for controlling the aspiration or dispense of liquids
1025Fluid level sensing
Applicants Hitachi, Ltd.
株式会社日立制作所
罗氏诊断公司
Inventors Tokiwa Yukie
常磐幸惠
L. Siegfried
今井恭子
L·西格弗里德
K·弗里德曼
Agents wang hongxiang
北京银龙知识产权代理有限公司
Title
(EN) Liquid dispensing method and device
(ZH) 液体分注方法及装置
Abstract
(EN) Water is sucked into a dispensing tip from a liquid container, and later air is sucked at a first speed and then at a speed higher then the first speed, thereby atomizing or forming into droplets the sucked water in the dispensing tip to increase an air relative humidity in the dispensing tip. A specified time later, a liquid to be dispensed in sucked into the dispensing tip. Whereby, a vaporization amount, in the dispensing tip, of the liquid to be dispensed is kept minute and constant to enable an accurate dispensing in amount of the liquid.
(ZH)

将来自液体容器(8)的水吸引至分注头(2)内,然后先以第1速度、再以比第1速度快的速度吸引空气。这样吸入的水在分注头(2)内雾化或水滴化,可提高分注头(2)内空气的相对湿度。隔一定时间后,将应分注的液体吸引至分注头(2)内。这样,分注头(2)内的应分注的液体的蒸发量为微量并且稳定,可进行正确量的液体分注。