[Determination of I- by the ECL of luminol in neutral medium]

Guang Pu Xue Yu Guang Pu Fen Xi. 2005 May;25(5):675-7.
[Article in Chinese]

Abstract

Based on the studies of electrochemiluminescence(ECL) of luminol in neutral medium, the iodide would greatly sensitize the ECL of luminol. The ECL luminous intensity responded linearly to the concentration of iodide within the range of 3.8 x 10(-7) mol x L(-1) to 2.2 x 10(-6) mol x L(-1), and the detection limit is 4.0 x 10(-8) mol x L(-1). The mechanism of enhancement effect of iodide on luminol's ECL is also discussed. The experimental results showed that it was a free radical procedure.

Publication types

  • English Abstract
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Buffers
  • Electrochemical Techniques / instrumentation
  • Electrochemical Techniques / methods*
  • Hydrogen-Ion Concentration
  • Iodides / analysis*
  • Iodides / chemistry
  • Luminescence*
  • Luminescent Measurements / instrumentation
  • Luminescent Measurements / methods*
  • Luminol / chemistry*

Substances

  • Buffers
  • Iodides
  • Luminol