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Filter membrane sample pretreatment device and method thereof

A technology for sample pretreatment and filtration membrane, applied in measurement devices, separation methods, chemical instruments and methods, etc., can solve the problems of affecting test results, sample liquid outflow filtration, and easy contamination of sample liquid, etc., to reduce pollution and avoid outflow. , the effect of reducing consumables

Pending Publication Date: 2020-09-04
中检集团理化检测有限公司 +1
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a filter membrane sample pretreatment device and its method, which are used to solve the problems that the sample liquid is easily polluted by the existing filter membrane sample pretreatment method, which affects the detection results, and the sample liquid flows out and the filtration is not smooth.

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  • Filter membrane sample pretreatment device and method thereof
  • Filter membrane sample pretreatment device and method thereof
  • Filter membrane sample pretreatment device and method thereof

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Embodiment Construction

[0024] The implementation of the present invention will be illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0025] In the following description, for purposes of illustration rather than limitation, specific details, such as specific system architectures, interfaces, and techniques, are set forth in order to provide a thorough understanding of the present invention. It will be apparent, however, to one skilled in the art that the invention may be practiced in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail.

[0026] This embodiment provides a filter membrane sample pretreatment device, refer to figure 1 , the device mainly includes an ext...

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Abstract

The invention discloses filter membrane sample pretreatment device and method, and relates to the field of environment detection devices, in particular to the filter membrane sample pretreatment device which comprises an extraction tube, a filter piston and a sample injection tube, wherein the filter piston is arranged in the extraction tube, the sample injection tube is detachably connected withthe filter piston, and a filter element is arranged in the filter piston. The invention can solve the problems of easy pollution of the sample liquid, influence on the detection result, outflow of thesample liquid and unsmooth filtration in the existing filter membrane sample pretreatment mode. By means of the extraction pipe, the filtering piston and the sample injection pipe, the smoothness ofthe filtering process is realized, the outflow of a sample solution can be avoided, the ultrasonic treatment and filtering of the sample are integrated, the repeated transfer of the sample solution isreduced, the pollution is reduced, and the filtering time is shortened; due to the separation design of the filter piston and the filter element, the filter piston can be repeatedly used, consumablesare reduced, and the cost is effectively reduced.

Description

technical field [0001] The invention relates to the field of environmental detection devices, in particular to a filter membrane sample pretreatment device and a method thereof. Background technique [0002] Membrane sample analysis is an important content in the field of ambient air detection. The particulate matter in the ambient air is enriched on the filter membrane by pump pressure, and then the components (such as soluble anions and cations) enriched on the filter membrane sample are extracted by ultrasonic and other means. Proposed into the solution, and using the instrument to measure, the concentration of the components in the atmospheric particulate matter can be calculated. [0003] Among them, when extracting the components on the filter membrane sample, the ultrasonic extraction pretreatment method is widely used. The process is to first place the filter membrane in a PP centrifuge tube with a screw cap for ultrasonication, and use a disposable syringe after the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/28G01N15/06B01D35/02
CPCG01N1/28G01N15/06B01D35/02G01N2015/0687
Inventor 俞梁敏李光明井鹏苏磊高媛
Owner 中检集团理化检测有限公司
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