Paper-based micro-fluidic chip with multi-channel heavy metal ion detection function
A heavy metal ion, multi-channel detection technology, applied in material analysis by observing the influence of chemical indicators, measuring devices, material analysis by optical means, etc. On-site measurement, not easy to carry, etc.
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[0025] refer to Figure 1 to Figure 11 The shape structure in is a paper-based microfluidic chip for multi-channel detection of heavy metal ions, which consists of a first layer 11, a second layer 12 and a third layer 13 of paper substrates and a bottom support substrate 26. It is characterized in that: the chip is circular or rectangular, and is pasted together by three layers of paper substrates with the same shape and size and treated with superhydrophobic treatment. For example, the paper for making chips is dissolved in n-hexane solution with a volume ratio of methyltrichlorosilane and octadecyltrichlorosilane of 7:3 at room temperature, and stirred evenly, and the concentration of the mixed solution is 0.1%. Then, put the selected filter paper into the previous solution, soak it for 5 minutes, take it out, and place it in a constant temperature drying oven for 5 minutes to prepare it.
[0026] The first layer 11 is processed on the first layer of paper substrate accordi...
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