Date of Award
Master of Science in Engineering Science- (M.S.)
Chemical Engineering, Chemistry and Environmental Science
Barbara B. Kebbekus
There are many analytical methods used in the identification of aniline by the production of various colors upon treatment with certain reagents. In this work a new inexpensive, easy and sensitive methods to quantitate aniline is developed. The change of absorbance is large enough to measure with a difference of only 1 ppm in the aniline concentration.
In this method, the reagent (2,4-dinitrodiazonium sulphate) which reacts with aniline produces a yellow color. Formation of this color (which absorbs at 486 nm) indicates the presence of aniline. The amount of aniline can be determined by measuring the absorbance at 486 nm.
When this was applied to a simulated air sample, the results show a linear relation between the concentration of aniline and the absorbance. It indicates that this method can be used in analysis of air samples for aniline.
Hsu, Hong-hue, "Determination of aromatic amines by diazonium salt" (1988). Theses. 2020.