Determination of trace aluminum (III) using a novel cerium (IV)-calcein chemiluminescence detection

  • Nie F
  • Lu J
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A simple, sensitive and selective chemiluminescence (CL) method was developed for the direct determination of aluminum (Al). This method is based on that the weak CL of cerium (IV)-calcein can be greatly enhanced by Al(III). The calibration curve was linear over the range 2.0 × 10-10to 4.0 × 10-8g mL-1with a detection limit of 8 × 10-11g mL-1(3σ). The R.S.D. was 2.5% by 11 replicated determinations of 1.0 × 10-9g mL-1Al(III). The proposed method has been used to determine the concentration of Al(III) in real water samples with satisfactory results. The mechanism of the CL reaction was also discussed. © 2008 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Aluminum
  • Calcein
  • Cerium
  • Chemiluminescence

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