Device and method for real-time detection of lead, cadmium and mercury in aquaculture water

Abstract

The invention provides an apparatus and method for detecting lead, cadmium, and mercury in aquaculture water in real time. The apparatus comprises a black box module and a microcomputer module. The black box module comprises a first light source, a second light source, an optical filter, an optical fiber, a microfluidic chip, and a photoelectric detection chip. The first light source is arranged on the upper side of the microfluidic chip. The optical filter is arranged between the first light source and the microfluidic chip. One end of the optical fiber is connected to the microfluidic chip.The other end of the optical fiber is connected to the second light source. The photoelectric detection chip is arranged on the lower side of the microfluidic chip. The microcomputer module drives thefirst light source and the second light source so as to alternatively irradiate the microfluidic chip. The spectral data is subjected to a turbidity compensation treatment, the matrix effect is corrected, a detection model is established, the contents of lead, cadmium, and mercury in aquaculture water are obtained; high efficient, rapid, quantitative, precise, and automatic detection is realized,the using amount of reagents is reduced, and the onsite real-time detection of aquaculture water is achieved.

Description

technical field [0001] The invention relates to the technical field of water quality detection, and more specifically, to a device and method for real-time detection of lead, cadmium and mercury in aquaculture water. Background technique [0002] Heavy metals in water are major environmental pollutants that cannot be degraded, and can be transferred to the human body through aquatic animals and plants through the food chain, can accumulate in organisms for a long time, and show great toxicity in trace amounts. In recent years, heavy metal pollution in the water environment has become very common and is showing an increasing trend. Therefore, it is of great significance to realize the on-site and real-time detection of heavy metals in aquaculture water for the control and prevention of heavy metal pollution. [0003] The detection of water samples can directly reflect the conditions of lead, cadmium and mercury in the aquaculture water. There are mainly four types of existin...

AI Technical Summary

Problems solved by technology

There are mainly four types of existing technologies: one is based on traditional detection technologies such as photoelectric colorimetry, which has high precision, but the operation is time-consuming and laborious; the other is based on near-infrared spectroscopy technology, which uses reflection or transmission spectral characteristics to directly or indirectly measure multiple parameters of water bodies, but The cost of hardware is high, the detection accuracy is poor, and quantitative detection is almost impossible; the third is based on electrochemical analysis technology, which has high accuracy and sensitivity, but the selectivity is poor; the fourth is based on biological analysis technology, but its It lacks in accuracy and sensitivity

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