title: A novel chemiluminescent method for determination of phloroglucinol.
abstract: It was found that the inhibition and enhancement by phloroglucinol of the chemiluminescence from the luminol-K3Fe(CN)6 system were dependent on the pH of luminol solution and the concentration of phloroglucinol. In Na2CO(3)-NaHCO3 buffer, phloroglucinol exhibited strong chemiluminescent enhancement at pH 9.4. On this basis, a flow injection method was developed for the determination of phloroglucinol. The method was simple, rapid, convenient and sensitive, with a detection limit of 2.0 x 10(-9) mol/L. It is effective for determining phloroglucinol in the range of 1.0 x 10(-5)-5.0 x 10(-9) mol/L. The relative standard deviation is 1.3% within one day and 3.2% between days for the determination of 5.0 x 10(-7) mol/L phloroglucinol. The method has been successfully used to determine phloroglucinol in environmental water, with satisfactory results.
authors.affiliation: Department of Chemistry, University of Science and Technology of China, Hefei, Anhui 230026, People's Republic of China. hcui@ustc.edu.cn
authors.forename: Hua
authors.initials: H
authors.lastname: Cui
authors.forename: Cheng-Gen
authors.initials: CG
authors.lastname: Xie
authors.forename: Chun-Ze
authors.initials: CZ
authors.lastname: Lai
mesh_terms: D017022:Flow Injection Analysis / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D008163:Luminescent Measurements; D008165:Luminol / Q000737:chemistry; D010696:Phloroglucinol / Q000032:analysis*; D014873:Water Pollutants / Q000032:analysis
chemical_list: D014873:Water Pollutants; D008165:Luminol; D010696:Phloroglucinol