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Pretreatment device for detection of irradiation aquatic product derivative

A pretreatment device and aquatic product technology, applied in the direction of measuring device, test sample preparation, sampling, etc., can solve the problems affecting the filtration treatment of sample extraction liquid, insufficient negative pressure, etc., and achieve the effect of solving poor sealing

Active Publication Date: 2017-03-22
ZHEJIANG MARINE DEV RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 closed cavity that can effectively solve the problem of external air entering the vacuum due to poor sealing between the filter cartridge and the sealed box during the vacuum pumping process. In the body, the pretreatment device for the detection of irradiated aquatic product derivatives caused by insufficient negative pressure in the closed cavity affects the filtration treatment of the sample extract

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  • Pretreatment device for detection of irradiation aquatic product derivative
  • Pretreatment device for detection of irradiation aquatic product derivative

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0023] Such as figure 1 As shown, a pretreatment device for the detection of irradiated aquatic product derivatives includes vacuum equipment, a sealed box 1 with a closed inner cavity, a negative pressure suction port 13 arranged on the outer side of the sealed box, and a vacuum suction port 13 arranged on the sealed box. The placement sleeve 2 on the top surface of the box body and sealedly connected with the sealing box body, the filter cartridge 3 inserted in the placement sleeve body, and the self-adaptive pre-tightening sealing mechanism 5 arranged in the sealing box body. The vacuum equipment in this embodiment is an air pump. The vacuum device is connected to the negative pressure suction port through a second pipeline.

[0024] A first interface 14 communicating with the outer side of the sealed box is provided on the inner side of th...

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Abstract

The invention discloses a pretreatment device for detection of an irradiation aquatic product derivative. The problem that during vacuumizing, because sealing between a filtering barrel and a seal box is poor, external gas enters a vacuumized airtight cavity, so that negative pressure inside the airtight cavity is insufficient, and then filtering treatment on a sample extracting solution is affected is solved through the pretreatment device. The pretreatment device comprises a seal box with an airtight inner cavity, a negative-pressure pumping port formed in the external side face of the seal box, a sleeve body which is arranged on the external top face of the seal box and connected with the seal box in a sealed mode, a filtering barrel inserted into the sleeve body and a self-adaptation pretightening seal mechanism arranged inside the seal box.

Description

technical field [0001] The invention relates to the field of detection of derivatives of irradiated aquatic products, in particular to a pretreatment device for detection of derivatives of irradiated aquatic products. Background technique [0002] At present, in response to the increasingly severe safety issues of irradiated aquatic products, research on the detection technology of irradiated aquatic products derivatives is gradually carried out, the monitoring of irradiated aquatic products and the comprehensive and systematic research on the quality of irradiated aquatic products improve the safety of aquatic products control to ensure the quality and safety of aquatic products. In the detection of derivatives of irradiated aquatic products, the sample extract obtained after the sample pretreatment of aquatic products needs to be filtered, and the filtered liquid can be used for instrumental analysis. [0003] The negative pressure filtration method is currently used in t...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/40
CPCG01N1/4077G01N2001/4088
Inventor 相兴伟
Owner ZHEJIANG MARINE DEV RES INST