摘要
把凯氏定氮仪用于土壤阳离子交换量的测定,通过测定土壤样品p H的变化情况来确定仪器的准确蒸馏时间、滴定体积等最佳仪器参数设置,从而快速方便地测定土壤阳离子交换量。测定结果的偏差符合标准规定。
Before determining soil cation exchange capacity by Kieldahl’s method azotometer,testing the pH chan-ges could help to optimize the conditions of distill time and titration volume,which improved the test process faster and simpler.The deviation of the test results accorded to the standard.
出处
《环境科学导刊》
2015年第6期106-109,共4页
Environmental Science Survey
关键词
土壤阳离子交换量
凯氏定氮仪
方法改进
cation exchange capacity
Kieldahl’s azotometer
method improvement
