2014 Volume 45 Pages 197-201
We conducted analysis of sulfur in gasoline using a portable total reflection X-ray fluorescence spectrometer. Analysis of sulfur in gasoline has been difficult before, because gasoline drip spread widely when dropped on an optical flat.
In this article, we performed fluoride coating on the optical flat. As a result, the size of drip mark got smaller and analytical sensitivity of sulfur was greatly improved.