摘要
根据GB11894-89规定的总氮测定方法,对测定过程中的使用试剂、实验用水、消解条件、实验环境、仪器条件、人员操作等多方面需要注意的问题进行分析,发现过硫酸钾的选择和使用是最关键的环节,并提出降低空白值、提高实验准确度和精密度的措施。
According to the GB11894-89,which ruled the method of determination the water quality total nitrogen,the experiment reagent,the experimental water,the slaking condition,the experiment environment,the instrument condition and the experimenter’s process etc.were studied.Potassium persulfate was proved to be the key process.Then countermeasures were proposed to decrease blank value and increase the degree of accuracy and precision.
出处
《广州化工》
CAS
2010年第8期229-231,共3页
GuangZhou Chemical Industry
关键词
总氮
过硫酸钾
空白值
水质分析
total nitrogen
potassium persulfate
blank value
water quality analysis
