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dc.titleHigh performance liquid chromatographic determination of aluminium in natural waters in the form of its lumogallion chelate
dc.contributor.authorZhou, C.Y.
dc.contributor.authorWu, J.
dc.contributor.authorChi, H.
dc.contributor.authorWong, M.K.
dc.contributor.authorKoh, L.L.
dc.contributor.authorWee, Y.C.
dc.identifier.citationZhou, C.Y.,Wu, J.,Chi, H.,Wong, M.K.,Koh, L.L.,Wee, Y.C. (1995-03). High performance liquid chromatographic determination of aluminium in natural waters in the form of its lumogallion chelate. Talanta 42 (3) : 415-422. ScholarBank@NUS Repository.
dc.description.abstractA high performance liquid chromatographic method for the determination of ultra trace amount of aluminium in natural waters has been developed using lumogallion as a precolumn reagent for fluorimetric detection. The highly fluorescent Al-lumogallion chelate (λex 500 nm, λem 574 nm) was separated on a LiChrosorb RP 18 column with an eluent containing 3:7 acetonitrile/0.02M potassium hydrogen phthalate buffer (pH 4.7) containing 10-5M lumogallion. The proposed system provides a simple, quick, selective and sensitive method for the determination of ultra-trace amount of aluminium in water samples. The detection limit defined as three times the standard deviation of the blank signal, was 0.05 μg/l. in water samples for 100 μl injection. The tolerance limits were 5 mg/l. for Fe(III) and F- and over 10 mg/l. for other foreign ions. The sensitivity of the method was independent of salinity. This method had been used for the direct determination of aluminium in both tap and coastal sea-waters without any preconcentration steps. © 1995.
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