[Determination of I- by the ECL of luminol in neutral medium].
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.
Chu
Hai-Hong
HH
College of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215006, China.
Qi
Ying-Ying
YY
Xu
Yang
Y
Huang
Bing-Qiang
BQ
Tu
Yi-Feng
YF
D002021:Buffers; D055664:Electrochemical Techniques / Q000295:instrumentation / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D007454:Iodides / Q000032:analysis* / Q000737:chemistry; D049449:Luminescence; D008163:Luminescent Measurements / Q000295:instrumentation / Q000379:methods*; D008165:Luminol / Q000737:chemistry*
D002021:Buffers; D007454:Iodides; D008165:Luminol