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In this paper, immunosensors based on electrochemical (potentiometric and amperometric) detection are presented. We developed ISFET type potentiometric immunosensor with urease as a label and a screen-printed amperometric immunosensor with alkaline phosphatase, utilizing ascorbic acid phosphate as a substrate. For the free alkaline phosphatase in concentration range 35-3500 pM, the response of amperometric...
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