DETERMINATION OF ALUMINUM IN WATER BY FLOW-INJECTION WITH FLUOROMETRIC DETECTION BY USING SALICYLALDEHYDE CARBOHYDRAZONE AS REAGENT IN A MICELLAR MEDIUM
Fs. Rojas et al., DETERMINATION OF ALUMINUM IN WATER BY FLOW-INJECTION WITH FLUOROMETRIC DETECTION BY USING SALICYLALDEHYDE CARBOHYDRAZONE AS REAGENT IN A MICELLAR MEDIUM, Analyst, 119(6), 1994, pp. 1221-1223
A room-temperature flow injection spectrofluorimetric method is presen
ted for the determination of Al-III, based on the use of salicylaldehy
de carbohydrazone in the presence of Triton:X-100 and potassium hydrog
enphthalate-hydrochloric acid buffer. Various physical and chemical va
riables that affect the reaction in the flow system were evaluated. Th
e proposed method is very selective. The calibration graph is linear o
ver the range 3-600 ng ml(-1), with a detection limit of 2.25 ng ml(-1
) and a relative standard deviation at the 50 ng ml(-1) level of 3.55%
. The method was successfully applied to the determination of Al-III i
n drinking waters.