Selective and sensitive determination of trace manganese in sea water by flow through technique using luminol–hydrogen peroxide chemiluminescence detection

Abstract

A flow through analytical method has been developed for the determination of trace amounts of manganese in sea water using luminol–hydrogen peroxide chemiluminescence (CL) detection. The method was very simple and almost all the metal ions did not interfere with the CL detection except for iron species. The iron species were thoroughly removed by passing the sample solutions through a 8-quinolinol immobilized chelating resin column. The lower and upper limits of detection were 0.029 nM and 4 μM, respectively. The relative standard deviation was 0.58% at 10 nM of Mn(II). The method permitted the selective and sensitive determination of sub-nM levels of Mn in sea water sample with sufficient precision.