Soil sediment DGT sampling device and method

A sampling device and sediment technology, which is applied in the direction of sampling devices, etc., can solve the problems that DGT samplers cannot realize field sampling, etc., and achieve the effects of avoiding insufficient dripping, convenient carrying, and reducing consumption

Active Publication Date: 2021-09-28
NAT RESERACH CENT OF GEOANALYSIS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above analysis, the present invention aims to provide a soil sediment DGT sampling device and sampling method, in order to solve the problem that existing DGT samplers cannot realize field sampling

Method used

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  • Soil sediment DGT sampling device and method
  • Soil sediment DGT sampling device and method
  • Soil sediment DGT sampling device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A particular embodiment of the present invention, discloses a soil sediment DGT sampling means for performing in the field soil or sediment sample collection, such as Figure 1 to 4 , The DGT soil sediment sampling means comprises:

[0052] Dripping means, and a drip container means comprises a drip line 2, the container 2 for storing pure water, the container 2 is connected to the drip line, the pure water in the container 2 continuously samples soil surface to drip through the drip line, the soil sampling point 9 holding surface wet state;

[0053] DGT sampler 1, DGT sampler 1 is placed on the wet state of the soil surface 9 for adsorbing the sample from the soil in the wet state.

[0054] When implemented, the DGT sampler 1 on the soil surface field sampling points, so that the sampler DGT suction side in contact with the soil 1, 2 into the container filled with water, the switch open drip drip mechanism, pure water container 2 drip line to the sampling point by continuou...

Embodiment 2

[0075] A further particular embodiment of the present invention, discloses a soil sampling device DGT sediment, the difference is that in Example 1, the present embodiment 7 of the flow control mechanism has been improved, the flow rate control mechanism and the inlet 7 2 the container outlet in communication, a flow rate control means 7 and the outlet of the cartridge water feeding inlet 4 is connected, no electricity can be unattended.

[0076] Specifically, if Figure 7 , The flow rate control means 7 comprises a regulating tank 11, the adjusting tank 11 is provided with a water control lever assembly, the lever assembly comprises a vertical water control lever 12, swing lever 13, the float 14, L-shaped tube 15, the rubber plug 16, the vertical lever 12 vertically disposed in the adjustment tank 11, the top of the vertical bar 12 is mounted a shaft, pivot lever 13 is connected via a shaft 12 to the vertical bar, a first end of the swing lever 13 is connected to a float 14, a sec...

Embodiment 3

[0085] A further particular embodiment of the present invention, discloses a method of sampling a soil sediment DGT, DGT use of soil sediment sampling device of Example 1, comprising the steps of:

[0086] Step one: on the soil surface field sampling points DGT sampler 1 9, DGT sampler 1 in contact with the suction end of the soil;

[0087] Step 2: dripping means is fixed to the upper sampler DGT 1;

[0088] Step Three: Open drip drip switch mechanism, pure water in the container 2 topsoil sample dripping continuing to 9 points, the sampling points by the soil surface remains wet state drip line 9; DGT soil sampler 1 carried out in the wet state adsorption sample.

[0089] A preferred embodiment of the present embodiment, prior to step three, further comprising the steps of:

[0090] On one side of the sample point excavation pit, pit sidewalls 10 in a direction toward the sample point is inserted into the slot 2 water retention, water retention slot 2 is inserted diagonally downw...

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Abstract

The invention relates to a soil sediment DGT sampling device and method, belongs to the technical field of soil sampling, and solves the problem that an existing DGT sampler cannot realize field sampling. The soil sediment DGT sampling device comprises a DGT sampler and a water dripping mechanism, the water dripping mechanism comprises a water dripping pipeline and a container, the container is connected with the water dripping pipeline, and purified water in the container continuously drips water to the surface layer of soil at a sampling point through the water dripping pipeline, so that the surface layer of the soil is kept in a wet state; the DGT sampler is arranged on the surface layer of wet soil and is used for adsorbing and sampling from the wet soil. The device is simple in structure and convenient to operate, continuous water dripping is achieved through the water dripping mechanism, soil at a sampling point is kept in a wet state, field sampling is achieved, and the application prospect is wide.

Description

Technical field [0001] The present invention belongs to the technical field soil sampling, in particular one kind of soil sediment DGT sampling apparatus and method. Background technique [0002] Refers DGT (Diffusive Gradients in Thin-films, DGT) can be effectively measured in nature biologically effective state of heavy metals, and other conventional techniques as compared to morphological analysis, to better reflect the heavy metal absorbed by a living body diffusion gradient thin film technology , gradient diffusion film technology into a dynamic concept, can be studied biological effectiveness of heavy metal absorption of heavy metals by plants or other organisms simulation, the technique can effectively simulate more realistic soil dynamic reaction process, and can be estimated using the model kinetic parameters of the dynamic process of the soil, thus better able to assess the importance of the dynamic process of soil, and therefore the results obtained not only reflect a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/04G01N1/10
CPCG01N1/04G01N1/10
Inventor 赵九江郭威袁继海范晨子
Owner NAT RESERACH CENT OF GEOANALYSIS
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