摘要
根据长期的实际操作经验,要准确测定高锰酸盐指数值,在样品分析中,水浴时间不能少于35min;K值在0.980～1.010;滴定时温度保持在70℃。以提高测定结果的准确度。
To determinate permanganate index accurately, it is necessary to keep the samples in the water more than 35 minutes, and K value is 0. 980 to 1. 010, and the titration temperature keeps about 70 degree.
出处
《环境科学导刊》
2007年第B06期82-83,共2页
Environmental Science Survey
关键词
高锰酸盐指数
准确度
测定
permanganate index
accuracy
determination
