有机化合物中硫的测定,通常用Shoniger氧瓶燃烧法,生成的硫酸根用钡盐来滴定,但是用这个方法分析有机金属化合物样品,常遇到这样一些困难:燃烧后用钡盐溶液滴定时,某些金属离子干扰络合指示剂指示终点;一些碱土金属或重金属生成难溶性硫酸盐(如Ca、Sr、Ba、Mg、Pb等),致使结果偏低。在前人工作基础上,对分析方法作了改进,采用金 Determination of sulfur in organic compounds, usually by Shoniger oxygen flask combustion method, the generated sulfate titration with barium salt, but with this method analysis of organometallic samples, often encounter such difficulties: after combustion with barium salt solution titration , Some metal ions interfere with the complex indicator indicating the end point; some alkaline earth metals or heavy metals produce insoluble sulfate (such as Ca, Sr, Ba, Mg, Pb, etc.), resulting in low results. On the basis of previous work, the method of analysis has been improved, using gold