摘要:
A chemical analysis apparatus is equipped with analysis sections having openings, means for supplying samples or reagents from the openings, means for combining and mixing samples with reagents to obtain droplets as liquids to be measured, and means for measuring the physical properties of the liquids to be measured during reaction or after completion of reaction. Furthermore, plate members are provided facing each other in analysis sections and a plurality of electrodes are provided on the plate member faces that face each other. Voltage is applied from the plurality of electrodes to the droplets of the samples and the reagents.
摘要:
The adverse effect on measurement accuracy brought about by the transmission of light beams through portions of a liquid sample with different concentrations, i.e., a concentration distribution in the vertical direction of a container, is prevented by using semiconductor light sources of two different types with different wavelengths. The semiconductor light sources (2, 4) of two different types are housed in the same package (5) such that a detector (9) can capture the light beams emitted by the light sources after their optical axes have intersected with one another. The multiple light beams can be thus caused to pass through portions with substantially the same concentration and therefore can be detected without being influenced by the difference in concentration of the sample in the container.
摘要:
The adverse effect on measurement accuracy brought about by the transmission of light beams through portions of a liquid sample with different concentrations, i.e., a concentration distribution in the vertical direction of a container, is prevented by using semiconductor light sources of two different types with different wavelengths. The semiconductor light sources (2, 4) of two different types are housed in the same package (5) such that a detector (9) can capture the light beams emitted by the light sources after their optical axes have intersected with one another. The multiple light beams can be thus caused to pass through portions with substantially the same concentration and therefore can be detected without being influenced by the difference in concentration of the sample in the container.
摘要:
Conventional liquid transport substrates having a fluid channel formed along an array of electrodes have a problem in which throughput decreases, depending on driving conditions. In order to avoid two-way passage in a fluid channel from the inlet to a measuring section and a fluid channel from the measuring section to the outlet, the measuring section is located in the middle of the fluid channel connecting the inlet and the outlet, so that manipulation from the inlet to the outlet takes place in one direction on the substrate. Even when analyzing a large number of sample droplets, by transport of the droplets substantially in one direction, it is possible to complete measurement in a short time.
摘要:
There are provided a chemical analysis apparatus and an analysis device in which predetermined quantities of a sample and a reagent are presicely pipetted, then are subjected to various processes, and are tested by a test device. Thus, the chemical analysis apparatus comprises the analysis device, an oil supply portion, a sample pipetting portion and a reagent pipetting portion. The analysis device comprises an upper board provided with a common electrode, and a lower board provided with a drive electrode including a train of a plurality of electrodes. Oil is filled in a space defined between the two boards, and liquid drops of the sample, the reagent and the like are formed in the oil. The common electrode is applied thereto with a negative voltage or is grounded while a positive voltage is applied to electrodes on the drive electrode side in order to decrease a contact angle in a zone where the voltage are applied to the electrodes, and accordingly, the wettability is enhanced, thereby it is possible to displace the liquid drops.
摘要:
Conventional liquid transport substrates having a fluid channel formed along an array of electrodes have a problem in which throughput decreases, depending on driving conditions. In order to avoid two-way passage in a fluid channel from the inlet to a measuring section and a fluid channel from the measuring section to the outlet, the measuring section is located in the middle of the fluid channel connecting the inlet and the outlet, so that manipulation from the inlet to the outlet takes place in one direction on the substrate. Even when analyzing a large number of sample droplets, by transport of the droplets substantially in one direction, it is possible to complete measurement in a short time.
摘要:
A liquid transfer device electrically controls liquid position. The surface of the liquid transfer device is provided with unevenness in order to solve a problem of having a large number of electrodes for controlling voltage. The number of electrodes for controlling voltage can be halved by the utilization of a restoring force of the liquid to a spherical shape by surface tension, in addition to an electrical force.
摘要:
Provided is a liquid transfer device which controls electrically liquid position. The surface of the liquid transfer device is provided with unevenness in order to solve a problem of having a large number of electrodes for controlling voltage. The number of electrodes for controlling voltage can be halved by utilization of restoring force of liquid to a spherical shape by surface tension, in addition to electrical force.
摘要:
A chemical analyzer supplies a sample and a reagent into a reaction container provided with an opening mixes a fluid which is to be measured and contains the sample and reagent supplied into the reaction container, measures a property of the fluid in the reaction container, and controls the drive for the mixer. The mixer has a vertical drive machine to move the mixing tool up and down. The control unit controls the vertical drive machine to move the mixing tool up and down in the fluid to be measured in the reaction container so as to cause upward and downward flow of the fluid which is to be measured and is positioned below the mixing tool.
摘要:
A chemical analyzer supplies a sample and a reagent into a reaction container provided with an opening, mixes a fluid which is to be measured and contains the sample and reagent supplied into the reaction container, measures a property of the fluid in the reaction container, and controls the drive for the mixer. The mixer has a vertical drive machine to move the mixing tool up and down. The control unit controls the vertical drive machine to move the mixing tool up and down in the fluid to be measured in the reaction container so as to cause upward and downward flow of the fluid which is to be measured and is positioned below the mixing tool.