Device and method for detecting types of micro-plastics in sea eels

Abstract

The invention discloses a device and a method for detecting types of micro-plastics in sea eels, belongs to the technical field of micro-plastic detection, and aims to solve the problems that digested body tissues are long in filtering time and tedious in drying operation, micro-plastics need to be collected and put into detection equipment for qualitative and quantitative analysis after being dried, the operation is incoherent, and the time is wasted. Through a suction filtration mechanism, a drying assembly and a collection mechanism, a Fourier infrared spectrum detector is arranged at the front end of a detection table, the suction filtration mechanism comprises a negative pressure pump arranged in the detection table, the interior of a negative pressure channel is fixedly connected with a first funnel and a second funnel, and vent holes penetrating up and down are uniformly distributed in the first funnel; negative pressure is generated on the upper portion in the negative pressure channel through work of the negative pressure pump, tissue fluid penetrates through a first microfiltration membrane in the negative pressure state, flows into the first funnel through the second funnel and is finally discharged out of the liquid discharging pipe, and the effects that the filtration efficiency is high, and the tissue fluid can be recycled are achieved.

Description

technical field [0001] The invention relates to the technical field of microplastic detection, in particular to a device and method for detecting microplastic species in sea-caught eels. Background technique [0002] There are already a wide variety of plastics in life, such as polyethylene, polystyrene, etc. These compounds are exposed to the wind and sun in the natural environment. Although they cannot be completely degraded, they are gradually becoming smaller and become Microplastics that are smaller than particles, whose particle size ranges from a few microns to several millimeters, are a mixture of heterogeneous plastic particles in various shapes, which are often difficult to distinguish with the naked eye, and are vividly called "PM2.5 in the sea". Compared with "white pollution" plastics, the harm of microplastics is reflected in its small particle diameter, which is more harmful to the environment than general non-degradable plastics. [0003] At present, the det...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a device and method for detecting microplastic species in sea-caught eels, which solves the problem of microporous filtration of digested body tissues in the background technology, which takes a long time to filter and needs to be dried after the filtration is completed. It is cumbersome, and after drying, it is necessary to collect the dried microplastics and put them in the detection equipment for qualitative and quantitative analysis. The whole process is inconsistent and wastes time.

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