Determination of reaction stoichiometries by using the sequential injection analysis technique

Abstract A simple and reliable sequential injection analysis system is proposed to determine the reaction stoichiometries of different complexes. In this study, the Fe(III)/Tiron complex as 1:1 complex and the Fe(II)/1,10-phenanthroline complex as 1:3 complex were evaluated. The importance of the correct reagent order, as well as the need for thorough mixing, is highlighted.