University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Website: @unf

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Exhaust Automobile

Classification: Waste -> gas -> exhaust -> automobile

Citations 2

"Fluorimetric Flow Injection Analysis Of Total Amounts Of Aldehydes In Auto Exhaust Gas And Thermal Degradation Emission Gas With Cyclohexane-1,3-dione"
Talanta 1996 Volume 43, Issue 6 Pages 859-865
Tadao Sakaia,*, Hideki Nagasawaa and Harumitsu Nishikawab

Abstract: Car exhaust gases and emission gases from the thermal degradation of polymers were collected by drawing through methanol. The methanol solution was injected into a carrier stream of water and the carrier stream merged with a reagent stream of 0.02% cyclohexane-1,3-dione in aqueous ammonium acetate/acetic acid buffer of pH 5 (0.75 ml/min). The resultant stream passed through a reaction coil (7 m x 0.5 mm i.d.) at 70°C, then through a cooling coil (2 m x 0.5 mm i.d.) at 10°C to a fluorescence detector for measurement of 452 nm (excitation at 376 nm). Calibration graphs were linear from 100-1000 ppb aldehydes with a detection limit of 30 ppb and RSD (n = 10) of 1.5% for 500 ppb formaldehyde. Sample frequency was 30 samples/h.
Aldehydes, total Fluorescence Heated reaction Buffer

"Determination Of Trace Amounts Of Alcohols By Gaseous Flow Injection Analysis"
Chem. Express 1988 Volume 3, Issue 9 Pages 539-542
Maeda, Y.;Fujio, Y.;Suetaka, T.;Munemori, M.

Abstract: Flow-injection analysis for rapid and reproducible determination of trace amounts of alcohols was developed on the basis of formation of an alkyl nitrite in the heterogeneous reaction of alcohols with NO2 on clean Pyrex glass surfaces. Detection limits for Me, Et and iso-Pr alcohols were 4.0, 0.8 and 2.3 ppb, respectively, using gas chromatography with electron capture detection. The method was applied to gas stove waste gases and automobile exhaust gases. (SFS)
Alcohols GC Gas stream Method comparison