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A method for on-site separation and concentration of phytoplankton

A phytoplankton and on-site technology, applied in the field of phytoplankton separation and concentration, can solve the problems of large errors, troublesome identification work, and different sizes of phytoplankton, and achieve the effects of simple method, easy cleaning and reduction of errors.

Active Publication Date: 2019-03-05
MARINE FISHERIES RES INST OF ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the supernatant must be sucked off manually when separating the liquid in the separating funnel, the sediment in the lower layer will be stirred if you are not careful, and the phytoplankton will be siphoned out, resulting in a large error in the separation of phytoplankton
In addition, the phytoplankton obtained by this method are of different sizes, which brings great trouble to the identification work.

Method used

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  • A method for on-site separation and concentration of phytoplankton
  • A method for on-site separation and concentration of phytoplankton
  • A method for on-site separation and concentration of phytoplankton

Examples

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Embodiment 1

[0027] An embodiment of a phytoplankton on-site separation and concentration device of the present invention, such as figure 1 As shown, it is used for the survey of phytoplankton in a certain sea area or lake.

[0028] First at the selected sampling point, according to figure 1 Connect the on-site separation and concentration device for phytoplankton, including placing the first-level filter sieve 2 and the second-level filter 10 on the first-level filter support frame 1 and the second-level filter support frame 9 respectively; The graduated sample bottle 8 and the secondary graduated sample bottle 11 are respectively connected to the water storage pipe 5 through the clamp 7 .

[0029] The primary filter screen support frame 1 is made of stainless steel and has a diameter of 20 to 30 cm, and is connected with the secondary filter screen support frame 9 through 4 steel pipes; the primary filter screen 2 has a particle size of 625 mesh , the material is polytetrafluoroethylen...

Embodiment 2

[0037] An embodiment of a phytoplankton on-site separation and concentration device of the present invention, such as figure 1 As shown, it is used for the survey of phytoplankton in a coastal waters.

[0038] First at the selected sampling point, according to figure 1 Connect the on-site separation and concentration device for phytoplankton, including placing the first-level filter sieve 2 and the second-level filter 10 on the first-level filter support frame 1 and the second-level filter support frame 9 respectively; The graduated sample bottle 8 and the secondary graduated sample bottle 11 are respectively connected to the water storage pipe 5 through the clamp 7 . The primary filter sieve support frame 1 is made of stainless steel and has a diameter of 20 cm, which is connected with the secondary filter sieve support frame 9 through 4 steel pipes; the primary filter sieve 2 has a particle size of 625 mesh and a material It is polytetrafluoroethylene (PTFE), which is used...

Embodiment 3

[0046] An embodiment of a phytoplankton on-site separation and concentration device of the present invention, such as figure 1 As shown, it is used for the investigation of phytoplankton in a lake.

[0047] First at the selected sampling point, according to figure 1 Connect the on-site separation and concentration device for phytoplankton, including placing the first-level filter sieve 2 and the second-level filter 10 on the first-level filter support frame 1 and the second-level filter support frame 9 respectively; The graduated sample bottle 8 and the secondary graduated sample bottle 11 are respectively connected to the water storage pipe 5 through the clamp 7 . The primary filter sieve support frame 1 is made of stainless steel and has a diameter of 20 cm, which is connected with the secondary filter sieve support frame 9 through 4 steel pipes; the primary filter sieve 2 has a particle size of 625 mesh and a material It is polypropylene (PP), used for concentrating and s...

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Abstract

The invention relates to a phytoplankton on-site separation and concentration method. The method comprises the following steps: both a bolting silk switch and a water storage switch of a primary filter unit and a secondary filter unit are closed, when a water sample passes through the primary filter unit, phytoplankton of a larger particle size is adhered on primary filtering bolting silk to complete the primary filter, the water sample then enters the secondary filter unit, the phytoplankton of a smaller particle size is adhered on secondary filtering bolting silk to complete the secondary filtering, and then the water sample enters a water storage tank; the bolting silk switch is opened, the water storage switch is closed, and the phytoplankton is washed by adopting filter water and collected into a water storage pipe; and the water storage switch is opened, a washing solution is enabled to flow into a sample bottle, and then the water storage switch is closed. The method is simple, rapid and convenient, no external assisting device is needed, the target phytoplankton is relatively stable in the transportation and storage process, after the sample is brought back to a laboratory, the phytoplankton can be directly identified by using a microscope; and all parts of an adopted device are detachable and easy to clean, can be combined to use, can also be used independently, and can be flexibly selected according to an application function.

Description

technical field [0001] The invention relates to an on-site separation and concentration method for phytoplankton, in particular to an on-site secondary separation and concentration method for phytoplankton which is easy to assemble and disassemble. Background technique [0002] Phytoplankton, also known as planktonic algae, is the sum of several species of algae that live suspended in water. Phytoplankton and its productivity are important members and one of the important functions of the aquatic ecosystem, and are an important part of the natural bait of fish. Because phytoplankton are very sensitive to environmental changes, they also play an important role in environmental monitoring. For example, in the freshwater environment, during the fish growing season, the study of the composition and existing amount of algae in the water can provide an important scientific basis for the rational stocking of farmed fish, and also provide useful information for the research and uti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/40
CPCG01N1/4077G01N2001/4088
Inventor 李振华朱文斌蒋日进张亚洲卢战辉徐开达
Owner MARINE FISHERIES RES INST OF ZHEJIANG