Water quality integration toxicity detection paper chip

Abstract

The invention discloses a water quality integration toxicity detection paper chip. The paper chip comprises a paper substrate possessing hydrophobicity, and detection units and a recovery unit which have hydrophilia and pass through the paper substrate. After the paper substrate is folded along a folding line, a cover plate area, a first transition area, a second transition area, and a bottom plate isolation area are superposed. There are at least two detection units, and each detection unit comprises a liquid inlet, a detection zone, a first transition liquid inlet zone, a first transition detection zone, a recovery liquid addition channel, a second transition liquid inlet zone, a second transition detection zone and a liquid inlet channel. The recovery unit comprises a recovery liquid addition port and a recovery fluid transition zone. A microfluidic paper chip technology is combined with a luminescent bacteria detection mehtod, luminous bacteria is prestored in a specific area in the chip, a bacteria liquid does not need to be prepared during detection and an operation process is simplified. The luminous bacteria and a paper chip are combined, the chip is small and a current situation that existing detection cost is high so that popularization in a grassroots level and families is difficult can be solved.

Description

technical field [0001] The invention relates to the technical field of environmental detection, in particular to a paper chip for water quality comprehensive toxicity detection. Background technique [0002] With the development of industrialization, the safety situation of water sources and drinking water is becoming more and more serious, which seriously threatens the health of residents. Although the traditional water quality safety detection method has high precision and sensitivity, the detection steps are complicated, time-consuming and labor-intensive. Moreover, the toxins in the water body are various and complex, and it is difficult to detect multiple toxins at the same time. The luminescent bacteria inhibition method uses a sensitive photoelectric measurement system to measure the influence of poisons on the luminous intensity of luminescent bacteria, so as to evaluate the presence and intensity of poisons in water. In addition, due to the similarity between bact...

AI Technical Summary

Problems solved by technology

[0003] At this stage, there are some toxicity analysis methods and instruments based on luminescent bacteria on the market, but measuring tubes are used in the toxicity detection of luminescent bacteria, which is more troublesome and costly

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