Selective chlorine dioxide determination using gas-diffusion flow injection analysis with chemiluminescent detection

Journal Article · Sun Jun 01 00:00:00 EDT 1986 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00298a056· OSTI ID:5630612

Hollowell, D A; Gord, J R; Gordon, G; Pacey, G E

An automated chemiluminescent technique has been developed utilizing the advantages of gas-diffusion flow injection analysis. A gas-diffusion membrane separates the donor (sampling) stream from the acceptor (detecting) stream and removes ionic interferences. A novel chemiluminescence flow-through detector cell is used to measure the concentration of chlorine dioxide as a function of the intensity of the chemiluminescence produced from its reaction with luminol. The chemiluminescent reagent merges with the analyte directly in front of the photomultiplier tube in order to maximize the sensitivity of the system. The detection limit for chlorine dioxide is approximately 5 ppb. The method is over 1500 times more selective for chlorine dioxide than for chlorine on a mole basis. This method eliminates interference from iron and manganese compounds, as well as other oxychlorinated compounds such as chlorite ion and chlorate ion.

• Research Organization: Miami Univ., Oxford, OH
• OSTI ID: 5630612
• Journal Information: Anal. Chem.; (United States), Vol. 58:7
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHLORINE OXIDES
CHEMICAL REACTIONS
CHEMILUMINESCENCE
LUMINOL
DIFFUSION
EXPERIMENTAL DATA
GASES
MEMBRANES
QUANTITATIVE CHEMICAL ANALYSIS
TRACE AMOUNTS
AMINES
AZINES
CHALCOGENIDES
CHEMICAL ANALYSIS
CHLORINE COMPOUNDS
DATA
FLUIDS
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
INFORMATION
LUMINESCENCE
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHTHALAZINES
PYRIDAZINES
400104* - Spectral Procedures- (-1987)
400500 - Photochemistry