Portable water pollutant enrichment device

A water pollutant, portable technology, applied in the preparation of test samples, etc., to achieve the effect of weight balance, easy to carry in the field, and easy to operate

Pending Publication Date: 2020-11-27
YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a portable enrichment device for water body pollutants (including cyanotoxins such as microcy...

Method used

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  • Portable water pollutant enrichment device
  • Portable water pollutant enrichment device
  • Portable water pollutant enrichment device

Examples

Experimental program
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Embodiment 1

[0027] Such as Figure 1-3 As shown, the portable water body pollutant enrichment device in the present embodiment comprises:

[0028] The lower shell 5 has a hollow cylindrical structure as a whole, and a notch 51 is opened on the outer peripheral surface;

[0029] Column clamp 9, which is connected to the inner wall of the lower shell 5; in this embodiment, the column clamp 9 includes: a column clamp mounting seat 91, which is connected to the inner wall of the lower shell 5; a fixing member 92, one end of which The column clamp mounting seat 92 is rotatably connected by a rotating member such as a pin shaft, and the opening and closing is realized by rotating the rotating member as an axis; One end is used to lock the fixing member 92 on the column clamp mounting seat 91;

[0030] An extraction column 8 (such as a C18 solid phase extraction column, etc.), which can be clamped and fixed in the lower shell 5 by the column holder 9; specifically, as Figure 4 As shown, the ...

Embodiment 2

[0047] The only difference between this embodiment and Embodiment 1 is that, as Figure 1-3 As shown, the enrichment device further includes: an upper cover limiter, which is used to prevent the upper cover 3 from being opened when the upper cover 3 closes the upper opening of the upper shell 1; specifically, the upper cover limiter The position member includes: a limit ring 18, which is connected to the outer peripheral surface of the upper cover 3; a limit seat 19, which is connected to the upper end surface of the second installation position 102; and a limit pin 17; the upper cover 3 is closed When the upper part of the upper shell 1 is opened, the position of the limit ring 18 corresponds to the position of the limit seat 19. If the limit ring 18 is located at the side of the limit seat 19, the limit pin 17 passes through the limit The ring 18 and the limit seat 19 are used to fix the position of the upper cover 3 and prevent the upper cover 3 from being opened; after the...

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Abstract

The invention discloses a portable water pollutant enrichment device which comprises a lower shell, a column clamp connected with the inner wall surface of the lower shell, an extraction column whichcan be clamped and fixed in the lower shell by the column clamp, an upper shell detachably connected with the lower shell, an air pump assembly used for forming a high-pressure environment in the upper shell through air inflation, a control assembly used for controlling the operation of the air pump assembly; a sample storage bottle which is hollow in the interior, and separably arranged in the upper shell; and an enrichment bottle which is hollow in the interior and separably arranged in the lower shell. Part of the sample storage bottle is arranged in the enrichment bottle in a sleeved mode/the whole sample storage bottle is located over the enrichment bottle. The enrichment device is reasonable in structural layout, small in size, convenient to operate, convenient to carry outdoors andcapable of effectively avoiding the problem of enrichment failure caused by drying of the extraction column.

Description

technical field [0001] The invention relates to the field of sample detection, in particular to a portable water body pollutant enrichment device. Background technique [0002] With global warming, the frequency, duration, and scope of cyanobacterial blooms in eutrophic water bodies have shown a significant upward trend, causing a series of serious environmental problems such as water quality deterioration and cyanobacterial toxin pollution such as microcystins. [0003] At present, the detection method of microcystins recommended by the World Health Organization, developed countries and authoritative organizations in my country is high performance liquid chromatography, which is accurate, sensitive, and reproducible, and can simultaneously analyze different microcystin isomers body advantages. However, since the detection limit of microcystins by high performance liquid chromatography is generally about 1 mg / L, and the content of microcystins in natural water is only about ...

Claims

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Application Information

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IPC IPC(8): G01N1/40
CPCG01N1/40
Inventor 魏念李云峰张燕吴凡
Owner YANGTZE RIVER FISHERIES RES INST CHINESE ACAD OF FISHERY SCI
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