Flow reversal and flow recycle air-segmented flow injection for simultaneous determination of a binary mixture

Flow reversal and flow recycle configurations in an air-segmented flow injection system are presented for simultaneous determinations based on differential kinetics with a slow enzymatic reaction. The sensitivity of determination by the proposed system is improved over that by flow-reversal flow injection systems because of lower dispersion. The new methodology is applied to the simultaneous kinetic determination of a binary mixture of amino acids.