Petroleum Chemistry, Vol.43, No.5, 344-349, 2003
Determination of low sulfur content in organic compounds and petroleum products using the double combustion method
A low content of sulfur (0.001 wt %) was first determined in nitrobenzene and model mixtures of diesel fuel or benzene with n-decane, and the sulfur content of sodium sulfonates was also measured. A possibility for turbidimetric detection was shown. The method has an almost unlimited use and is suitable for the analysis of substances regardless of their physical state (combustible gases, gasolines, crude oils, residual oils, bitumens, rubbers, polymers). Variation in the sample mass from -5 mg to 6000 mg makes it possible to determine elements at their low content (similar to10 ppm) with no upper limit. The total time of analysis is 10-25 min.