Electrochemical sensor for Cd2+ and Pb2+ detection based on nano-porous pseudo carbon paste electrode |
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| Institution: | 1. State Key Laboratory of Bioelectronics, Southeast University, Nanjing 210096, China;2. Hunan Key Laboratory of Biomedical Nanomaterials and Devices, Hunan University of Technology, Zhuzhou 412007, China;3. Hunan Provincial Key Lab of Dark Tea and Jin-Hua, School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, China;4. School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China;1. Department of Pharmaceutical Analysis, Faculty of Pharmacy, Fujian Medical University, Fuzhou, Fujian 350004, China;2. Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Testing Center, Fuzhou University, Fuzhou, Fujian 350108, China;1. Chemistry Department, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;2. Dyeing, Printing and Textile Auxiliaries Department, Textile Research Division, National Research Centre, Dokki, Cairo, Egypt;3. Department of Chemical Engineering and Polymer Science, Shahjalal University of Science and Technology, Sylhet 3100, Bangladesh;4. Center of Excellence for Advanced Materials Research, Faculty of Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia;1. School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, 510641, PR China;2. School of Chemistry and Chemical Engineering, Guangdong Pharmaceutical University, Guangzhou, 510006, PR China;3. Department of Chemistry, School of Pharmaceutical Sciences, Guangzhou Medical University, Guangzhou, 511436, PR China;4. Guangzhou Ingsens Sensor Technology Co., Ltd, Kaiyuan Road 11, Guangzhou, 510535, PR China;1. Department of Chemistry, Faculty of Science, Hakim Sabzevari University, P.O. Box 397, Sabzevar, Iran;2. Nano Drug Delivery Research Center, Kermanshah University of Medical Sciences, Kermanshah, Iran;3. Transport Phenomena & Nanotechnology (TPNT) Lab., School of Chemical Engineering, College of Engineering, University of Tehran, Tehran 111554563, Iran;4. Department of Petroleum Engineering, Hakim Sabzevari University, Sabzevar, Iran;1. Shanxi Province Key Laboratory of Functional Nanocomposites, North University of China, Taiyuan 030051, China;2. Shanxi Province Key Laboratory of Higee-Oriented Chemical Engineering, North University of China, Taiyuan 030051, China;3. School of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China |
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| Abstract: | An electrochemical sensor based on self-made nano-porous pseudo carbon paste electrode (nano-PPCPE) has been successfully developed, and used to detect Cd2+ and Pb2+. The experimental results showed that the electrochemical performance of nanoPPCPE is evidently better than both glassy carbon electrode (GCE) and pure carbon paste electrode (CPE). Then the prepared nano-PPCPE was applied to detect Cd2+ and Pb2+ in standard solution, the results showed that the electrodes can quantitatively detect trace Cd2+ and Pb2+, which has great significance in electrochemical analysis and detection. The linear ranges between the target ions concentration and the DPASV current were from 0.1–3.0 μmol/L, 0.05–4.0 μmol/L for Cd2+ and Pb2+, respectively. And the detection limits were 0.0780 μmol/L and 0.0292 μmol/L, respectively. Moreover, the preparation of the nano-PPCPE is cheap, simple and has important practical value. |
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| Keywords: | Cadmium ions Lead ions Sensor Detection |
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