Micro-electrophoresis chip and method for online concentration and detection of charged small particles
A small particle and micro-electrophoresis technology, applied in the preparation of test samples, measuring devices, sampling, etc., can solve the problems of increasing the cost of the instrument and reducing the convenience of the instrument, so as to reduce the cost of the instrument, improve the portability and maximize the application potential Effect
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Embodiment 1
[0060] Such as figure 2 , image 3 As shown, a microelectrophoresis chip for online concentration and detection of small particles includes a substrate with three channels in the substrate, and five pools on the substrate, namely: sample pool P, concentration pool A, and sample waste pool B. Buffer pool C, buffer waste pool D. It also includes five high-voltage electrodes and a pair of detection electrodes (respectively the detection signal transmitting electrode 12 and the detection signal receiving electrode 13).
[0061] The concentration channel PA connects the sample pool P and the concentration pool A;
[0062] Such as Figure 4 As shown, the concentration channel PA 14 is connected to the sample cell P and the concentration cell A;
[0063] Such as Figure 5 As shown, the sample injection channel AB 15 connects the concentration tank A and the sample waste liquid tank B;
[0064] Such as Image 6 As shown, the separation channel CD 16 connects the buffer pool C and the buffer...
Embodiment 2
[0070] Optionally, in this embodiment, there are three sample cells P, which are connected in parallel with the concentration cell A, and there are three sample cells.
Embodiment 3
[0072] Optionally, in this embodiment, the concentration tank A is provided with an adjusting plunger for adjusting the volume, and the volume adjustment range is 100 nanoliters to 2500 nanoliters;
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