Pulse polarography and electrochemical spectrum method for quick clearing double electric layer charging current error
A charging current and electric double layer technology, which is applied in the fields of electrochemical variables of materials, scientific instruments, material analysis by electromagnetic means, etc., can solve problems such as difficulty in meeting the technical requirements of multi-dimensional separation and detection, and achieve the purpose of reducing the background of charging current and enhancing the resolution. Ability, the effect of improving sensitivity
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[0032] The following embodiments will further illustrate the present invention in conjunction with the accompanying drawings. In order to specifically illustrate the new potential control method to eliminate the error of electric double layer charging current, take electrochemical spectrometer or pulse polarograph as an example, see figure 1 , the spectrometer includes a potential excitation signal generation circuit 1, a comparator 2, a current amplification output circuit 3, a current chopper 4, an electrolytic cell 5, a potential chopper 6, a potential sampling and holding circuit 7, a current sampling delay circuit 8 and a volt An curve display circuit 9 and so on.
[0033]One input terminal of the comparator 2 is connected to the output terminal of the potential excitation signal circuit 1, the output terminal of the comparator 2 is connected to the input terminal of the current chopper 4 after the current amplification output circuit 3, and the output terminal of the cur...
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