An application of an expert system to potentiometric stripping analysis |
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| Affiliation: | 1. Department of Chemistry, Faculty of Science, Srinakharinwirot University, Sukhumvit 23, Wattana, Bangkok 10110, Thailand;2. Electrochemistry and Optical Spectroscopy Research Unit, Department of Chemistry, Faculty of Science, Chulalongkorn University, 254 Phayathai Road, Pathumwan, Bangkok 10330, Thailand;1. Jiangsu Key Laboratory of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou 215009, PR China;2. Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, PR China;3. Department of Endocrinology, Xuzhou Central Hospital, The Affiliated Xuzhou Hospital of Medical College of Southeast University, Xuzhou 221009, PR China;4. State and Local Joint Engineering Laboratory for Novel Functional Polymeric Materials, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, PR China;1. Department of Materials Engineering, Purdue University. Neil Armstrong Hall of Engineering. 701 West Stadium Avenue, West Lafayette, IN, 47907-2045, USA;2. Birck Nanotechnology Center, Purdue University. 1205 W State St, West Lafayette, IN, 47907-2045, USA;3. Instituto de Química, Facultad de Ciencias Exactas y Naturales, Universidad de Antioquia UdeA Calle 70 No. 52-21, Medellín, Colombia;1. Center for Sensor Technology of Environment and Health, Tsinghua University, Beijing 100084, China;2. State Key Joint Laboratory of Environmental Simulation and Pollution Control, School of Environment, Tsinghua University, Beijing 100084, China;3. Department of Mechanical Engineering, Columbia University, New York, NY 10027, USA;4. Department of Chemistry, Tsinghua University, Beijing 100084, China;1. Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangzhou 510650, China;2. College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China;3. College of Natural Resources and Environment, South China Agricultural University, Guangzhou 510642, China |
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| Abstract: | In this paper, a potentiometric stripping analysis (PSA) system controlled by an expert system, designed and constructed by us, is examined for the analysis of cadmium, lead and copper. PSA has gained a place in trace metal analysis, with many applications of this technique reported in the past decade. The simpler equipment required and lack of organic interference have made this technique an alternative method to the well established anodic stripping voltammetric (ASV) procedure. The expert system not only provides direct equipment control but also interprets the results based on its knowledge base and provides adjustments of the experimental parameters to optimize the analysis. The selected expert system builder, Crystal, is an extremely simple programming environment, the instruction being almost in the form of standard English. This allows the user to build up a knowledge base without the need for great computing skill. |
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