title: A new resonance Rayleigh scattering spectral method for determination of O3 with victoria blue B.
abstract: Ozone (O3) could be absorbed by boric acid-potassium iodide (BKI) absorbent solution to produce tri-iodine ion (I3(-)) that react with victoria blue B (VBB) to form the associated particle (VBB-I3)n and exhibited a strong resonance Rayleigh scattering (RRS) peak at 722 nm. Under the chosen conditions, the RRS peak intensity was linear with O3 concentration in the range of 0.2-50 μmol/L, with a linear regression equation of ΔI722=17.9c-45.4 and detection limit of 0.057 μmol/L. Accordingly, a simple, rapid and sensitive RRS spectral method was set up for determination of trace O3 in air, with satisfactory results.
authors.affiliation: Guangxi Key Laboratory of Environmental Pollution Control Theory and Technology, College of Environment and Resource, Guangxi Normal University, Guangxi, Guilin 541004, China.
authors.forename: Guiqing
authors.initials: G
authors.lastname: Wen
authors.forename: Duo
authors.initials: D
authors.lastname: Yang
authors.forename: Zhiliang
authors.initials: Z
authors.lastname: Jiang
mesh_terms: D000388:Air / Q000032:analysis*; D001888:Boric Acids / Q000737:chemistry / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D008027:Light; D057230:Limit of Detection; D010126:Ozone / Q000032:analysis*; D011193:Potassium Iodide / Q000737:chemistry / Q000378:metabolism; D012394:Rosaniline Dyes / Q000737:chemistry*; D012542:Scattering, Radiation; D013050:Spectrometry, Fluorescence / Q000379:methods*; D014732:Vibration
chemical_list: D001888:Boric Acids; D012394:Rosaniline Dyes; D011193:Potassium Iodide; D010126:Ozone; C032688:boric acid; C009662:Victoria blue B
keywords: Associated particles; Ozone; Resonance Rayleigh scattering; Victoria blue B