Water quality toxicity detector

Abstract

The invention discloses a water quality toxicity detector, which comprises the following parts which are mutually independent: a luminescent bacteria storing region, a sampling groove connected with acirculation pipeline, a sucker region used for storing disposable suckers, a detection region used for reacting luminescent bacteria and a water sample and detecting, and a mechanical arm capable ofmoving back and forth among the luminescent bacteria storing region, the sampling groove, the sucker region and the detection region. Because the parts are separated, the regions are not connected through pipelines, the transportation of substances is realized through the mechanical arm, and the cross infection among regions is avoided. In addition, the suckers and reaction cups for detection aredisposable, so that the problems of cross contamination of strains and cross contamination of samples to be detected are prevented; and apparatus do not need a washing fluid to wash, so that zero cross contamination is truly realized.

Description

technical field [0001] The invention belongs to the field of water quality detection, in particular to a water quality toxicity detector. Background technique [0002] Bacterial luminescence is the current development trend in the field of water environment ecological detection. Traditional physical and chemical methods can only quantitatively analyze the content of one or several toxic components in the water sample to be tested, and cannot directly and comprehensively reflect the comprehensive impact of various toxic substances on the environment. Using the principle of live biological detection that the intensity of luminescent bacteria will change when they come into contact with harmful substances, the toxicity degree of pollutants in water can be obtained by testing the relative luminous intensity of luminescent bacteria. Compared with physical and chemical methods, bacterial luminescence method is broad-spectrum, fast, simple and economical, and can best reflect the ...

AI Technical Summary

Problems solved by technology

This detector can realize on-line real-time monitoring and analysis, but has the following problems: 1) Because all links of the whole detector are connected by pipelines, there is hidden pollution

For example, after the water sample is pretreated, toxic substances are left in the filter 5. When the water sample passes through next time, the remaining harmful components will be taken away, resulting in inaccurate test results; The stable period and decay period of bacteria are very short. Once the time is too long, not only will the activity be lost, but also the dead bacteria will be removed, which increases the complexity of the equipment.

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