A device and method for enriching organic pollutants in seawater

Abstract

The invention discloses an enrichment device and method for organic pollutants in seawater. The enrichment device comprises a vortex unit, wherein a bearing platform is arranged above the vortex unit, a medium bin, a sample bin, an electromagnetic bracket, a rotary arm and an electromagnetic unit are arranged on the bearing platform, a first motor and a first transmission mechanism are arranged on the electromagnetic bracket, the first motor drives the rotary arm to move up and down through the first transmission mechanism, the rotary arm is provided with a second motor and a second transmission mechanism, and the second motor drives the electromagnetic unit to horizontally move through the second transmission mechanism. With the adoption of the enrichment device, the whole process of extraction separation and enrichment of target pollutants can be fully automatically completed. The enrichment device and the enrichment method are particularly suitable for extraction and enrichment of various trace organic pollutants in a water sample with large volume, the preprocessing efficiency is obviously improved, and errors caused by manual operation are eliminated; meanwhile, the possibility that experimenters contact target pollutants and organic solvents is greatly reduced, and therefore, the safety of the preprocessing is high.

Description

technical field [0001] The invention belongs to the technical field of marine environment monitoring, and in particular relates to a device for extracting and enriching organic pollutants in seawater and an organic pollutant enrichment method proposed based on the enrichment device. Background technique [0002] Persistent Organic Pollutants (POPs) in seawater, although the absolute content is very low (10 -12 ~10 -9 g / L), but it is not easy to degrade, and has "three-caused" toxicity, and its toxicity can also accumulate and pass through the food chain, so it will pose a serious threat to the marine ecosystem, and has become one of the focuses of current research on marine environmental pollution. one. [0003] Since the content of POPs in seawater samples is very low and the matrix is ​​complex, sample pretreatment is usually required before determination to reduce or eliminate interfering substances, enrich and purify target substances, and finally achieve high-sensitiv...

AI Technical Summary

Problems solved by technology

[0008] In order to solve the problems that the existing seawater pollutant extraction method takes a long time to process, cannot be completed on site, and has potential pollution and property changes during water sample transportation, the present invention proposes a fast, efficient, and easy-to-apply organic pollutant-rich extraction method in seawater. The collection device effectively reduces the cost of transportation and storage, and improves the throughput and effectiveness of sample processing

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