【摘要】 分析了国标高温燃烧水解—电位滴定法测定煤中氯含量方法存在的问题,以及产生误差的主要原因,并对该方法进行了改进。结果表明,采用滴定曲线或微分曲线确定终点,测定结果的重复性和准确度均有较大提高。更多还原

【Abstract】 This article analyzed the problems existed in national chlorine determination method in coal-high temperature combustion hydrolyzing-electric potential titration method (GB/T3558-1996) and pointed out the main reasons of causing errors and, made improvement of the method. The results shows that the repeatability and accuracy are both better than before by using the titration curve or differential curve to determine the destinations.更多还原