A paper microfluidic chip, its manufacturing method and its use

Abstract

The invention discloses a paper micro fluidic chip, and a preparation method and an application method thereof. According to the design of the paper micro fluidic chip, a center zone, reaction zones,and detection zones are separated from each other, so that complex detection reaction can be carried out in channels smoothly; the plurality of reaction zones, and the plurality of detection zones areadopted, so that detection on heavy metal ions of different concentrations and kinds is realized; hydrophilic treatment is introduced, so that channels are unobstructed. The preparation method is simple in operation and high in repeatability.

Description

technical field [0001] The invention belongs to the technical field of microprocessing, and in particular relates to a paper microfluidic chip, a manufacturing method and a using method, which can be used for detecting heavy metal ions. Background technique [0002] Water pollution is a serious environmental problem facing all countries. Pollution with toxic metal ions is one of the most dangerous water pollution. If the human body absorbs heavy metal ions exceeding the critical value, it will cause serious damage to health. Therefore, heavy metal ions must be detected to ensure human health. [0003] Traditional methods for detecting heavy metal ions include spectroscopic, fluorescent, chromatographic, and electrochemical methods. These techniques have significant advantages such as high accuracy and sensitivity, but most of them require expensive precision instruments, complex sample pretreatment, and well-trained professionals, which cannot meet the requirements of por...

AI Technical Summary

Problems solved by technology

These technologies have significant advantages such as high accuracy and sensitivity, but most of them require expensive precision instruments, complex sample pretreatment, and well-trained professionals, which cannot meet the requirements of portable and easy-to-use detection

[0004] In recent research, some paper microfluidic chips have appeared to detect heavy metal ions. These methods are often complicated. On the basis of paper chips, they are coupled with electrochemical, fluorescence, and spectroscopic methods to achieve detection. There are many steps.

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