摘要
采用水杨醛处理试液、双指示剂指示终点的双指示剂中和法测定强酸中的肼 .该法能排除强酸的干扰 ,简单快速 ,相对标准偏差为 1 .2 1 % ( n=6) ,加标回收率为 98.7%— 99.1 % .用于测定硫酸肼生产过程中结晶母液中肼的含量 ,结果满意 .
Having treated sample with salicylandehyde,the hydrazine in strong acid solution was determined based on double indicator neutral method.The method can effectively eliminate the interference of strong acid.The recovery is 98.7%—99.1%,RSD is 1.2%(n=6).It is a convenient and rapid method.The procedure has been used to determine the hydrazine in crystal mother liquor from production of hydrazine sulfate,the results are satisfactory.
出处
《烟台师范学院学报（自然科学版）》
2000年第2期128-131,共4页
Yantai Teachers University journal(Natural Science Edition)
关键词
双指示剂中和法
肼
水杨醛
测定
强酸
double indecator neutral method
hydrazine
salicylaldehyde
determination
