一、测定原理溶解试样于酸(禁用硝酸)中,氮生成相应的铵盐,然后移入蒸馏瓶中,加过剩的碱进行蒸馏,铵以氨的形式蒸出并吸收于标准酸内,过量的标准酸再以标准碱回滴。据所耗标准酸的体积计算氮的含量。二、试剂及仪器 First, the determination principle Dissolved sample in acid (disable nitric acid), nitrogen to generate the corresponding ammonium salt, and then moved into the distillation flask, plus excess alkali distillation, ammonium ammonia in the form of steamed and absorbed in the standard acid, excess Of the standard acid and then back to the standard base drop. According to the consumption of standard acid volume calculation of nitrogen content. Second, reagents and equipment