Custom-made optical platforms for high-throughput acquisition of multilinear high-order data in dynamic systems

Abstract

In pursuing the success of multiway data analysis, while the selection of the proper chemometric protocol plays an important role in the data resolution, equally noteworthy is the experimental and instrumental procedure that is implemented for the data acquisition. As increasing the dimensionality of the data, more tedious and sophisticated experimental procedures must be employed in an attempt to better fulfill the mathematical characteristics of the data to be modeled. In this way, performing experiments in dynamic mode (kinetics, time-dependent, temperature gradient) with higher-order data acquisition is a challenge for chemometricians. The main inconvenience often relies on the recording rate of the detectors, which is generally slower than or comparable with the variation rate of the observable measure. Despite linear or fast scanning detectors being available for the immediate acquisition of vectorial signals (e.g., spectrum), multidimensional signal registering (e.g., excitation–emission matrix) in continuous-flow systems seems to be a troublesome task with the available commercial instrumentation. This chapter focuses on the novel custom devices built for the high-throughput acquisition of multidimensional signals in dynamic systems that fulfill the criteria of multilinearity to further chemometric applications.