title: Inhibition and enhancement by organic compounds of luminol-KIO4-H2O2 chemiluminescence.
abstract: 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.
authors.affiliation: Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China.
authors.forename: Hong
authors.initials: H
authors.lastname: Xu
authors.forename: Chun-Feng
authors.initials: CF
authors.lastname: Duan
authors.forename: Chun-Ze
authors.initials: CZ
authors.lastname: Lai
authors.forename: Mei
authors.initials: M
authors.lastname: Lian
authors.forename: Zhi-Feng
authors.initials: ZF
authors.lastname: Zhang
authors.forename: Li-Juan
authors.initials: LJ
authors.lastname: Liu
authors.forename: Hua
authors.initials: H
authors.lastname: Cui
mesh_terms: 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
chemical_list: D017680:Potassium Compounds; D010504:Periodic Acid; D008165:Luminol; D006861:Hydrogen Peroxide; C037192:potassium periodate