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In-situ sampling apparatus for epilithic periphyton

A technology of surrounding organisms and sampling devices, which is applied in the field of in-situ sampling devices, can solve the problems that cannot be replaced by ex-situ sampling, and achieve the effect of short sample collection time and improved sampling efficiency

Inactive Publication Date: 2013-05-01
RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The in-situ sampling device for surrounding organisms attached to stones of the present invention is used to solve the problem that ex-situ sampling cannot be used to replace under torrent conditions (speed greater than 1m / s) in the research of surrounding organisms in rivers

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  • In-situ sampling apparatus for epilithic periphyton
  • In-situ sampling apparatus for epilithic periphyton

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Embodiment Construction

[0019] 1. If figure 1 As shown, the in-situ sampling device for organisms around the stone is attached. The device generates negative pressure through the vacuum pump 1; the vacuum pump 1 is connected to the buffer bottle 2 to prevent the liquid from being sucked back into the vacuum pump 1; Connect the suction device A consisting of the probe handle 5, the motor 6, the probe body 7, the sealing rubber ring 8, the sample absorption hole 9, and the eccentric nylon brush 10.

[0020] 2. Select the rock matrix for collecting samples in the river, because the growth of surrounding organisms needs light, and the water depth is usually between 0.1 and 0.5m. The sampling probe body 7 has a length of 10 cm and a diameter of 4 cm, and is made of plexiglass; the probe body 7 is connected with a probe handle 5 and has a length of 1 m.

[0021] 3. The vacuum pump 1 and the motor 6 are respectively connected to power sources.

[0022] 4. When the probe has not touched the surface of the ...

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Abstract

The invention discloses an in-situ sampling apparatus for epilithic periphyton. According to the invention, the apparatus fixes a sampling cross-sectional area and uses an eccentric nylon brush which rotates at a high speed under the driving of a motor to brush off epilithic periphyton, wherein the brush is arranged on a probe; negative pressure is formed in a bowl-shaped sealing rubber ring positioned at the end of the probe and in the probe body under the action of a vacuum pump so as to allow water to enter into the probe along a slit between a stone and the sealing rubber ring, so it is guaranteed that periphyton is not taken away by a torrent when brushed off; and periphyton suspension is sucked into a sample collection bottle through a sample suction hole in the probe and deposited at a cone bottom, and a periphyton sample is separated through a sample separation valve. The in-situ sampling apparatus provided by the invention has the advantages of simple operation, high sample fidelity and a fast sampling speed and overcomes the problem that in-situ collection of epilithic periphyton on a large stone cannot be realized in a torrent. The in-situ sampling apparatus is applicable to a sample region where heterotopic manual sampling can be carried out.

Description

technical field [0001] The invention relates to an in-situ sampling device for surrounding organisms attached to stones, which is used to solve the problem of high water flow velocity (velocity greater than 1m / s) and large stone matrix during the sampling process of surrounding organisms in rivers, and it is impossible to isolate samples. The problem of bit acquisition. Background technique [0002] Periphytic organisms are biological communities that grow on substrates, including algae, bacteria, fungi, animals, organic or inorganic debris, etc. The substrates can be organic or inorganic, and can be living or non-living. . The main reference in the collection process of the existing periphyton samples is the morphology of the algae contained in it, because among the various components of the periphyton, the algae is the most important component. For periphytons composed of filamentous green algae, tools such as tweezers and scrapers can be used to directly collect them. ...

Claims

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Application Information

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IPC IPC(8): G01N1/14
Inventor 单保庆崔经国唐文忠
Owner RES CENT FOR ECO ENVIRONMENTAL SCI THE CHINESE ACAD OF SCI
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