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Prediction of nonlinear gradient signal in ion chromatography based on “experiment-free” methodology (CROSBI ID 165925)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Bolanča, Tomislav ; Ukić, Šime ; Rogošić, Marko Prediction of nonlinear gradient signal in ion chromatography based on “experiment-free” methodology // Journal of liquid chromatography & related technologies, 33 (2010), 20; 1831-1841. doi: 10.1080/10826076.2010.532707

Podaci o odgovornosti

Bolanča, Tomislav ; Ukić, Šime ; Rogošić, Marko

engleski

Prediction of nonlinear gradient signal in ion chromatography based on “experiment-free” methodology

One of the strategies that might be applied in ion chromatographic (IC) multi-segment gradient optimization is the simplification of gradient profile and its approximation by nonlinear elution. This work describes the IC signal modeling strategy for linear and nonlinear gradients. The performance characteristics of developed models do not depend on the linearity of gradient profile, but rather on initial gradient of eluent competing ion concentration. Four different IC models are developed and tested, requiring three, two or single experimental data point. Moreover, a model based on “experiment-free” methodology using standard column manufacturer quality assurance documents is developed. It is shown that all the developed models have good predictive ability that decreases by reducing the model complexity and number of experimental data required. However, even the “experiment-free” methodology offers reasonable performance characteristics (average of relative error 4.99 %) and might be recommended for IC method development purposes.

ion chromatography ; nonlinear gradient ; signal prediction

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Podaci o izdanju

33 (20)

2010.

1831-1841

objavljeno

1082-6076

1520-572X

10.1080/10826076.2010.532707

Povezanost rada

Kemijsko inženjerstvo

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