A zooplankton sample washing device

Abstract

The invention discloses a zooplankton sample washing device, which relates to the technical field of laboratory sample washing devices, comprising an inner funnel, an outer funnel and a funnel cover, the inner funnel is installed in the outer funnel, and the funnel cover is covered on the outer funnel The top of the cup body of the inner funnel is provided with a plurality of side wall holes, the inner wall of the cup body of the inner funnel is provided with a filter device, and the bottom of the filter device is a collection area; A circulation pipe is provided, and the bottom of the circulation pipe extends into the collection area; a porous separation plate is arranged above the collection area, and a circulation port and a plurality of separation holes are arranged on the porous separation plate. The diameter of the flow opening matches the diameter of the flow tube for passing the flow tube therethrough. The invention can realize the convenient and quick filtering and collection of zooplankton samples.

Description

technical field [0001] The invention relates to the technical field of laboratory sample washing devices, in particular to a zooplankton sample washing device. Background technique [0002] Zooplankton is the primary consumer in the marine ecosystem, and controls the density of phytoplankton through predation; at the same time, zooplankton is also the secondary producer of the marine food chain, serving as a bait for fish and other higher organisms. Both structure and function play important regulatory roles. The survey work of marine zooplankton requires adding 5% formaldehyde for fixation after trawl sampling, classification and counting by microscope in the laboratory. At present, before the laboratory microscopic examination, the samples need to be rinsed with running water to remove formaldehyde, which is carried out with the help of a funnel and a sieve. [0003] During the flushing process, the zooplankton samples to be flushed or the water flow is prone to splash, ...

AI Technical Summary

Problems solved by technology

[0003] During the washing process, the zooplankton samples to be washed or the water flow are prone to splash, resulting in sample loss and environmental pollution; since there is no fixed device, the sieve silk is easily displaced, causing the sample to flow out from the gap between the sieve silk and the funnel. Cause sample loss; due to the suction of water molecules between the sieve and the funnel, the water flow out is slower and takes a lot of time

During the suction filtration process, the entire sieve traps zooplankton, and the samples cannot be collected centrally, resulting in easy loss during the sample collection process.

Images