Gasoline engine exhaust analysis using constant energy synchronous luminescence spectrometry

Constant energy synchronous luminescence spectrometry at low temperature (77 K) is applied to environmental analysis involving fingerprinting gasoline exhaust samples containing polyaromatic hydrocarbons (PAHs). Combining this technique with a system that allows a crude sample separation based on temperature provides increased selectivity and sample information. It also confirms previous results demonstrating the effect sampling methodology can have on the number and quantity of PAHs found in the engine exhaust.