2000
DOI: 10.1016/s0003-2670(00)01012-6
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Simultaneous determination of phenol isomers in binary mixtures by differential pulse voltammetry using carbon fibre electrode and neural network with pruning as a multivariate calibration tool

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Cited by 136 publications
(47 citation statements)
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“…To obtain representative calibration and external validation sets despite this compositional variation, a PCA (Carvalho et al 2000) was performed on the near-infrared spectral data of the ricotta samples. Multiplicative scatter correction (MSC) and data mean centering (MC) were used to obtain the score data of the first principal component (PC1) versus the second component (PC1 and PC2 represent 95.1 % of data variance- Fig.…”
Section: Resultsmentioning
confidence: 99%
“…To obtain representative calibration and external validation sets despite this compositional variation, a PCA (Carvalho et al 2000) was performed on the near-infrared spectral data of the ricotta samples. Multiplicative scatter correction (MSC) and data mean centering (MC) were used to obtain the score data of the first principal component (PC1) versus the second component (PC1 and PC2 represent 95.1 % of data variance- Fig.…”
Section: Resultsmentioning
confidence: 99%
“…(21), (22) and (23) is simulated for a random sequence of steps in the input variable, the sampling time is 10 s. As a result In order to eliminate the problem with saturation of hidden nodes, the process variables q 1 and pH are scaled where in the initial operating point q 10 = 15.55 ml/s, pH 0 = 7. Analogously to some previous work [51,52], the second-order of model dynamics is used, i.e.…”
Section: Training Of the Initial Full Modelmentioning
confidence: 99%
“…There are numerous pruning methods, e.g. the Tukey-Kramer multiple comparison procedure [22], pruning using cross-validation [23], the pruning method optimised with a Particle Swarm Optimisation (PSO) algorithm [24], Bayesian regularisation [25], pruning using Minimum Validation error regulariser [26], Optimal Brain Damage (OBD) [27], optimal brain surgeon [28], and other novel approaches [29]. In particular, the OBD algorithm is very effective as reported in the literature.…”
mentioning
confidence: 99%
“…8,9 In addition, their competitive adsorption at the electrode surface makes the relationship between the voltammetric response and concentration in the mixtures nonlinear. 10 In order to solve these problems, many chemical modified electrodes were prepared for the simple, non-separate and simultaneous determination of isomers, such as carbon nanotubes modified electrode 11 and poly (glutamic acid) modified electrode. 12 Polymer-modified electrodes (PMEs) have received attention in recent years, 13,14 due to their good stability, reproducibility and homogeneity in electrochemical deposition and strong adherence to electrode surface.…”
Section: Introductionmentioning
confidence: 99%