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Simultaneously determining multi-metal ions using an ion selective electrode array system
- Source :
- Environmental Technology & Innovation. 6:165-176
- Publication Year :
- 2016
- Publisher :
- Elsevier BV, 2016.
-
Abstract
- The electronic tongue (ET) system contains an ion selective electrode (ISE) array, with a signal recording system and data processing methodology. It is developed for simultaneous determination of multiple free ions dissolved in solutions for real-time in situmonitoring. This article outlines an application of the ET system to determine chloride (Cl) simultaneously, and multi cationic metal ions, including calcium (Ca), cadmium (Cd), copper (Cu) and lead (Pb). In this study, Principal Component Analysis (PCA) was applied as a data compaction technique to reduce the complexity of data from the ISE array without losing much information. A patent data preprocessing method, geneticICA, was utilized to improve the prediction accuracy of ANN. Moreover, Orthogonal Experiment Design was employed for minimizing the number of training samples without losing any quality characteristics for the specific ions. Using our methodology means that results can be obtained rapidly and accurately without disturbing the natural speciation. The robustness and appropriateness of the approach were assessed using the mean relative error (MRE). When configured and optimized, the ET system can quantify the concentration of the four desired metals and chloride with the average MRE being lower than 0.10. Refereed/Peer-reviewed
- Subjects :
- Data compaction
Chemistry
Electronic tongue
Metal ions in aqueous solution
Design of experiments
010401 analytical chemistry
Analytical chemistry
electronic tongue (ET) system
Soil Science
artificial neural network (ANN)
02 engineering and technology
Plant Science
021001 nanoscience & nanotechnology
01 natural sciences
Signal
ion-selective electrode (ISE) array
0104 chemical sciences
Ion
Ion selective electrode
Principal component analysis
independent component analysis (ICA)
0210 nano-technology
General Environmental Science
Subjects
Details
- ISSN :
- 23521864
- Volume :
- 6
- Database :
- OpenAIRE
- Journal :
- Environmental Technology & Innovation
- Accession number :
- edsair.doi.dedup.....2aa65ff9b847b2306cb0032a096a1e7a