title: Flow-injection chemiluminescence determination of formaldehyde with a bromate-rhodamine 6G system.
abstract: In this paper, a novel flow-injection chemiluminescence (CL) system for the determination of formaldehyde is described. It is based on a strong enhance effect of formaldehyde on the weak CL emission of the reaction between potassium bromate and rhodamine 6G in a sulfuric acid medium. A possible mechanism for this CL reaction is proposed. A CL calibration graph was linear in the range of 0.8 - 200 microg l(-1) and the detection limit was 0.3 microg l(-1) (3sigma). The relative standard deviation was less than 3% for 10 microg l(-1) formaldehyde (n = 11). The method has been applied to determine formaldehyde in the air samples.
authors.affiliation: Department of Chemistry, School of Chemistry and Materials Science, Shaanxi Normal University, Xi'an, 710062, PR China.
authors.forename: Baoxin
authors.initials: B
authors.lastname: Li
authors.forename: Meilin
authors.initials: M
authors.lastname: Liu
authors.forename: Zhujun
authors.initials: Z
authors.lastname: Zhang
authors.forename: Chunli
authors.initials: C
authors.lastname: Xu
mesh_terms: D000397:Air Pollution / Q000032:analysis*; D001959:Bromates; D017022:Flow Injection Analysis; D005557:Formaldehyde / Q000032:analysis*; D008163:Luminescent Measurements; D012235:Rhodamines; D013057:Spectrum Analysis / Q000379:methods / Q000592:standards
chemical_list: D001959:Bromates; D012235:Rhodamines; D005557:Formaldehyde