5Wiliam W, Arsh Jr. Determination of Sulfur in Hydro- carbons by Oxidative Pyrolysis and Mierocoulometric Ti- tration[J]. Analytical Letters, 1970, 3(7): 341-352.
6Wallace L D, Kohlenberger D W, Joyce R J, Moore R T, Riddle M E, McNulty J A. Comparison of oxidative and reductive methods for the microcoulometric determi- nations of sulfur in hydrocarbons[J]. Analytical Chemis- try, 1970, 42 (3), 387-394.
7Moore R T. Phillip Clinton, Vince Barger. Determina- tion of total sulfur in hydrocarbons by oxidative micro- coulometry[J]. Analytical Chemistry, 1980, 52 (4), 760-765.