Multichannel liquid sample filtering and adsorption device
A liquid sample and adsorption device technology, which is applied in the direction of measuring devices, test sample preparation, sampling, etc., can solve the problems of slow filtration speed and cut-off, and achieve the effects of easy promotion, low cost and wide application range
Pending Publication Date: 2018-09-25
COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE
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Problems solved by technology
In the past, a valve was installed at the lower end of the filter to control the flow rate. This method is better at the initial stage of filtration, but when more particles accumulate on the filter membrane, even if the valve is fully opened, the filtration speed is very slow, or even cut off.
Method used
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Embodiment
[0023] First start the micro motor 1 with adjustable speed, which drives the gear I2 to rotate, the gear I2 drives the gear II3 and the gear III4 to rotate respectively, the connecting rod II8 and the connecting rod IV8' drive the power rod II12 to move upward in the slideway II11, and the power rod The push rod IV20 connected to II12 moves upward, pulling the piston II22 to move upward, and the sample in the sample bottle 26 is drawn into the glass cylinder II21;
[0024] At the same time, the connecting rod I7 and the connecting rod III7' drive the power rod I9 to move downward in the slideway I10, and the push rod III15 connected with the power rod I9 moves downward, pushing the piston I16 to move downward;
[0025] When the connecting rod Ⅱ8 and connecting rod Ⅳ8′ drive the power rod Ⅱ12 to move down in the slideway Ⅱ11, the push rod Ⅳ20 connected with the power rod Ⅱ12 moves down, pushes the piston Ⅱ22 to move down, and presses the sample in the glass cylinder Ⅱ21 into the...
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The invention discloses a multichannel liquid sample filtering and adsorption device. The device includes a micro motor, a gear set, pistons, one-way check valves and a filtering head; the micro motoris connected to the gear set; the gear set is connected to power rods installed on the slideways through connecting rods; the power rods are connected to the pistons through push rods; the pistons are connected to glass cylinder bodies; 2 branch pipes are led out under the glass cylinder bodies, one branch pipe is connected to a sample bottle, and the other branch pipe is connected to the filtering head; the two branch pipes are provided with the one-way check valves; and the combination of the two glass cylinder bodies can simultaneously filter one sample. The device can be equipped with multiple cylinder bodies according to needs during actual work processes; simultaneous filtering adsorption on multiple samples can be realized; controllable flow velocity can be achieved during filtering adsorption processes; filtering speed can be adjusted according to the needs; and sample transfer procedure can be simplified, and the device is low in cost and easy to popularization.
Description
technical field [0001] The invention relates to the field of glaciology, in particular to a multi-channel liquid sample filtration and adsorption device. Background technique [0002] After the Fukushima nuclear leak in Japan, radioactive pollution in the environment has received widespread attention. There are many instruments for detecting the intensity of radioactive pollution in the environment, but environmental samples need to be enriched in quantitative testing. Usually, acid is added to the liquid sample to adjust the pH to 2 to remove the influence of solid carbonate, and then the anion and cation filter membrane is used to filter the adsorption sample, and the anion, cation and particles in the liquid are enriched on the filter membrane, and then used Radioactive detector analysis. The filtration and adsorption process of environmental samples involves the anion and cation exchange process between the filter membrane and the sample, and the ion adsorption rate i...
Claims
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IPC IPC(8): G01N1/40G01N1/34
CPCG01N1/34G01N1/405
Inventor 武小波李全莲王宁练贺建桥
Owner COLD & ARID REGIONS ENVIRONMENTAL & ENG RES INST CHINESE