Portable field on-line solid phase film extraction device
An extraction device and solid-phase extraction membrane technology, which is applied in the field of portable field online solid-phase membrane extraction device, can solve the problems of uncontrollable results and uncontrollable extraction process, and achieve quality control, timeliness and accurate addition. Effect
Inactive Publication Date: 2013-12-11
李晓亚
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Problems solved by technology
The above invention patents do not solve the problem of accurate addition of substitutes, so even if the device can be used for field extraction, the extraction process is uncontrollable, and the final measured results are also uncontrollable
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[0030] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.
[0031] Such as figure 1 As shown, a portable field online solid-phase membrane extraction device according to an embodiment of the present invention includes an extraction device casing 1, and inside the extraction device casing are installed: a solid-phase extraction component 2, a first peristaltic pump 3, and a second peristaltic pump 4. A substitute container 5 , a waste liquid container 6 , a sample liquid container 7 , a power supply 8 , and a control module 9 .
[0032] The solid phase extraction assembly 2 comprises a solid phase extraction membrane support 21 and a diversion cover 22,
[0033] The lower end of the solid-phase extraction membrane support is provided with a liquid outflow pipe 214, and the l...
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Abstract
The invention relates to a portable field on-line solid phase film extraction device which comprises an extraction device box, wherein a solid phase extraction assembly, a power supply, a control module, a first peristaltic pump, a second peristaltic pump, a substitute container, a waste liquid container and a sample liquid container are mounted in the extraction device box; the solid phase extraction assembly comprises a solid phase extraction film support piece and a diversion cover; a liquid inlet of the first peristaltic pump is connected with the substitute container through a pipeline; a liquid outlet of the first peristaltic pump is connected with a first liquid inlet hole of the diversion cover through a pipeline; a liquid inlet of the second peristaltic pump is connected with the sample liquid container through a pipeline; a liquid outlet of the second peristaltic pump is connected with a second liquid inlet hole of the diversion cover through a pipeline; the sample liquid container is connected with a sample liquid supply pipeline; and the control module controls operation and flow rates of the first peristaltic pump and the second peristaltic pump. The device achieves the timeliness of organic analysis and accurate adding of a substitute, and overcomes the defects that a solid phase extraction column is long in extraction process time and easy to block, and the quality cannot be controlled.
Description
technical field [0001] The invention relates to the technical field of analysis of organic matter in water, and more particularly relates to a portable field on-line solid-phase membrane extraction device. Background technique [0002] There are problems in the storage and transportation of traditional organic water samples. The analysis of organic matter in water has a bottleneck that has plagued us for a long time, that is, organic matter can remain relatively stable in the water environment, but once it enters the small environment of the sampling bottle, it will change rapidly, so many analysis methods for organic matter in water require immediate analysis. , it cannot exceed 4 hours at most, but in general, the time for water samples to return to the laboratory is far more than 4 hours. If the water samples are stored for a long time, some components may change due to the following factors. Biological factors: the metabolic activities of microorganisms, such as bacteri...
Claims
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Inventor 李晓亚张永涛张莉桂建业张辰凌
Owner 李晓亚