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Vacuum sucking filtration sample collector

A technology of sample collection and vacuum filtration, which is applied in the direction of gravity filter, fixed filter element filter, filtration and separation, etc., can solve the problems of cumbersome washing-rinsing operation, unclean washing, incomplete rinsing, etc., and achieve improvement Experimental precision and accuracy, ways to reduce experimental errors, and the effect of improving efficiency

Pending Publication Date: 2020-04-28
YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a vacuum filtration sample collector to solve the problem that the existing upper mouth GG17 suction filtration bottle needs to have multiple specifications, the washing and rinsing operation is cumbersome, the washing is not clean and the rinsing is not thorough. The experimental error and other problems caused by

Method used

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  • Vacuum sucking filtration sample collector
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Examples

Experimental program
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Effect test

experiment example

[0045] Experimental example (comparison of time spent in pumping)

[0046] In this experimental example, using a traditional complete suction operation can be divided into 4 steps: 1. Wash the suction device; 2. Rinse the suction funnel with the sample liquid + rinse the filter bottle with the filtrate. Generally, this step will be Repeat at least 3 times; 3. Extract the raw sample solution; 4. Put the filtered liquid sample into the sample bottle.

[0047] The time taken for each of the above steps is t 1 , t 2 , t 3 , t 4 , then the traditional time t for a complete pumping operation a for

[0048]

[0049] After using the present invention, a complete suction operation can be divided into 3 steps: 1. Wash the suction device; 2. Rinse the suction funnel with the sample stock solution. Generally, this step will be repeated at least 3 times; 3. Pump the sample The stock solution + sample is filled into the sample bottle.

[0050] The time taken for each of the above ...

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Abstract

The invention belongs to the technical field of experimental equipment, and particularly relates to a vacuum sucking filtration sample collector, which comprises a suction filtration funnel, a samplecollection assembly and a suction filtration bottle, wherein the suction filtration funnel is inserted into the bottle opening of the suction filtration bottle and connected with the suction filtration bottle in a sealed mode, a neck part contracting inwards is arranged below the bottle opening of the suction filtration bottle, the sample collection assembly is arranged on the inner side of the neck part, the sample collection assembly is used for collecting samples, a suction filtration opening is formed in the bottle wall of the suction filtration bottle, the sample collecting assembly comprises a supporting funnel and a sample bottle, the supporting funnel is clamped at the neck part of the suction filtration bottle, the lower end of the supporting funnel is connected with the sample bottle, and a plurality of vent holes are formed in the supporting funnel in the circumferential direction. In the sample collection process, the suction filtration bottle does not need to be washed andmoistened, and the sample is directly put into the sample bottle, so that tedious experimental operation is avoided, ways for introducing experimental errors are reduced, and the experimental precision and the accuracy are improved.

Description

technical field [0001] The invention belongs to the technical field of experimental equipment, in particular to a vacuum filtration sample collector. Background technique [0002] Vacuum filtration is a commonly used solid-liquid separation equipment in laboratories. Its structure includes a GG17 suction bottle with upper nozzle, a suction pump, a suction funnel and a rubber tube. The suction filter pump pumps out the air in the filter bottle, the inside of the filter bottle is under negative pressure, and the liquid in the filter funnel is sucked into the filter bottle. [0003] To obtain a filtrate sample using a vacuum device, it is first necessary to select an appropriate suction filter bottle according to the required volume of the filtrate sample. The upper mouth GG17 suction filter bottle is an important component of vacuum filtration equipment, and its capacity is 125mL, 250mL, 500mL, 1000mL, 2500mL, 5000mL, 10000mL, 15000mL, 20000mL. Secondly, in the suction filtr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/085
CPCB01D29/085
Inventor 李沁国姜德娟夏云
Owner YANTAI INST OF COASTAL ZONE RES CHINESE ACAD OF SCI
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