Negative pressure suction type filter for aquatic product detection

A technology of negative pressure suction and aquatic products, which is applied in the direction of fixed filter element filter, filtration separation, preparation of test samples, etc. It can solve the problems of insufficient negative pressure, affecting the filtration of sample extraction liquid, etc., and achieve the effect of convenient operation

Active Publication Date: 2015-12-16
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Abstract
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a method that is not only easy to operate, but also can effectively solve the problem that the external gas that occurs during the vacuuming process enters the vacuumed cavity, resulting in insufficient negative pressure in the vacuumed cavity. , and the negative pressure suction filter used for the detection of aquatic products that affects the filtration of the sample extract

Method used

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  • Negative pressure suction type filter for aquatic product detection
  • Negative pressure suction type filter for aquatic product detection
  • Negative pressure suction type filter for aquatic product detection

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Embodiment Construction

[0018] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0019] like figure 1 , figure 2 As shown, a negative pressure suction filter for aquatic product detection includes vacuum equipment, a sample storage container 21, and a main box 1 with an airtight inner cavity, which is arranged on the top surface of the main box and connected to the main box. The placement through hole 27 communicated with the inner cavity of the filter cartridge 2 and the connected airtight structure inserted in the placement through hole. The vacuum equipment is an air pump.

[0020] like figure 1 , image 3 As shown, place the through hole as a round hole. A sealing ring installation groove is arranged on the inner side of the through hole. The cross-section of the filter cartridge is circular. The upper and lower ends of the filter cartridge are open. An annular stopper 25 is arranged on the outer surface of th...

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Abstract

The invention discloses a negative pressure suction type filter for aquatic product detection, and aims to provide the negative pressure suction type filter able to effectively solve the problem that during vacuum pumping, external gas enters a vacuum pumped cavity and results in insufficient negative pressure in the vacuum pumped cavity so as to affect the filtration of a sample extracted solution. The negative pressure suction type filter includes vacuum pumping equipment, a main box body having an enclosed cavity, a placement through hole arranged on the top of the main box body and communicated with the cavity of the main box body, and a filter cylinder and a communicating airtight structure inserted in the placement through hole.

Description

technical field [0001] The invention relates to the field of aquatic product detection, in particular to a negative pressure suction filter for aquatic product detection. Background technique [0002] With the improvement of people's living standards, while the production and consumption of aquatic products have greatly increased, the quality of aquatic products has also attracted more and more attention. How to test the quality of aquatic products is a problem that consumers are very concerned about. According to relevant food regulations and food inspection requirements, aquatic products need to pass sensory inspection, physical inspection, chemical inspection and other tests to ensure the quality and safety of aquatic products. In the detection of aquatic products, the sample extract obtained after sample pretreatment needs to be filtered with a filter membrane before instrumental analysis can be performed. [0003] The current sample extraction solution filtering device...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D29/01G01N1/34
Inventor 龙举龙位张小军李子孟
Owner MARINE FISHERIES RES INST OF ZHEJIANG
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