Inhibition and enhancement by organic compounds of luminol-KIO4-H2O2 chemiluminescence.
The effects of 36 organic compounds on luminol-KIO(4)-H(2)O(2) chemiluminescence (CL) were studied. It was found that most of the tested compounds could inhibit or enhance the CL intensity. The activities of such inhibitors or enhancers were related to the pH of the CL system and the number and position of functional groups such as -OH and -NH(2) on aromatic rings. The mechanism of the CL inhibition and enhancement was considered. Based on the CL inhibition or enhancement, the possibility of analytical applications was explored. The results demonstrated that numerous compounds were detectable at the ng/mL level using the CL system.
Xu
Hong
H
Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
Duan
Chun-Feng
CF
Lai
Chun-Ze
CZ
Lian
Mei
M
Zhang
Zhi-Feng
ZF
Liu
Li-Juan
LJ
Cui
Hua
H
D006861:Hydrogen Peroxide / Q000737:chemistry*; D006863:Hydrogen-Ion Concentration; D049449:Luminescence; D008163:Luminescent Measurements / Q000379:methods*; D008165:Luminol / Q000737:chemistry* / Q000494:pharmacology; D010504:Periodic Acid / Q000737:chemistry*; D017680:Potassium Compounds / Q000737:chemistry*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013056:Spectrophotometry, Ultraviolet
D017680:Potassium Compounds; D010504:Periodic Acid; D008165:Luminol; D006861:Hydrogen Peroxide; C037192:potassium periodate