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|Title:||High performance liquid chromatographic determination of aluminium in natural waters in the form of its lumogallion chelate|
|Source:||Zhou, 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.|
|Abstract:||A 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.|
|Appears in Collections:||Staff Publications|
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