摘要
针对海水淡化酸碱度的检测问题,分析了提高pH值检测精度的方法。分别从基于电化学原理的电位检测法和H+试剂分析法上进行了阐述;在电位检测法中,可以通过提高测量电极的精度、增大输入电阻值和设计温度补偿电路等方法提高pH值的检测精度;在H+试剂分析法中可以通过缩小测量范围、利用敏感指示试剂和双分光光度计等方法提高pH值的检测精度。
Focusing on the pH detection of seawater desalination,this paper analysizes the various methods in the improvement of pH measurement accuracy and approaches this subject in terms of the voltage test and the H+ reagent analysis,both of which are based on the electrochemical principle.For the voltage test,the measurement accuracy can be enhanced through improving the refinement of the measure electrodes,increasing the input impedance or through designing a temperature compensation circuit,etc.For the H+ reagent analysis,the measurement ccurarcy can be enhanced through reducing the measure range,adopting the sensitive reagent or dual spectrophotometric,etc.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2010年第S2期364-367,共4页
Environmental Science & Technology
基金
国家高科技研究发展计划(863计划)重点项目资助(2007AA092101)
