ERIC Number: ED110309
Record Type: Non-Journal
Publication Date: 1972-Jan
Reference Count: N/A
Specific Method for the Determination of Ozone in the Atmosphere.
Sachdev, Sham L.; And Others
A description is given of work undertaken to develop a simple, specific, and reliable method for ozone. Reactions of ozone with several 1-alkenes were studied at room temperature (25C). Eugenol (4-allyl-2-methoxy phenol), when reacted with ozone, was found to produce relatively large amounts of formaldehyde as compared to other 1-alkenes tested. The method described was compared with alkaline iodide method for the determination of various concentrations of ozone in the range of 0.05 to 2.0 ppm. The reactions of ozone with eugenol were found to yield stoichiometric amounts of formaldehyde. Hydrogen peroxide, peracetic acid, sulfur dioxide and various reducing agents commonly present in the air, do not interfere with the method. Formaldehyde, when present in the air, must be determined simultaneously. Any formaldehyde monitoring equipment can be easily adapted for the determination of ozone. (NTIS)
Descriptors: Air Pollution, Chemical Analysis, Chemistry, Environment, Environmental Research, Instrumentation, Measurement, Pollution, Quality Control, Research
National Technical Information Service, Springfield, Virginia 22151 (PB-213-019, PC-$3.00, MF-$2.25)
Publication Type: Reports - Research
Education Level: N/A
Sponsor: Environmental Protection Agency, Research Triangle Park, NC.
Authoring Institution: Louisiana State Univ., Baton Rouge. Coates Chemical Labs.