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In this paper, a fabrication process for capacitive pressure sensor is reported. The process is based on using the printed circuit board (PCB) microelectromechanical systems techniques. The gap between the electrodes is defined as the thickness of the copper layer of the commercial PCBs. The main advantages of the proposed procedure is easy and inexpensive fabrication process, the high integrability...
An automatic electrochemical sensor system based on a sequential injection analysis technique for continuous nitrate determination is demonstrated. A three-electrode-system (Pt–Pt–Ag/AgCl), in which the Pt working-electrode was modified with renewable copper nano-clusters, was designed and fabricated to implement sensitive and reproducible nitrate detection under a programmed operation protocol. Based...
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