“…Such a feature is assured to be due to outstanding advantages of the FIA system, such as simplicity, little sample manipulation, low reagents and sample consumption and, consequently, low-waste outcome. [31][32][33][34][35][36][37] The segmented flow analysis technique is considered to be a precursor of the different models of flow systems available today, based on sequential aspiration of the sample and air bubbles that make the flow dispersion better controlled. 37 Nowadays, there are several flow system configurations, such as: conventional flow-injection analysis with continuous flow and no air bubbles, proposed by Ruzicka; 38 a system with only one liquid segment trapped between two gas segments, which was named monosegmented; a system that employs several solenoid valves, named multicommutation; and a sequential analysis system.…”