水中pH值测定的方法验证及影响因素分析  

Method validation and factors analysis of pH determination in water

作　　者：孙振红 马健 王莉 SUN Zhenhong;MA Jian;WANG Li(Erwironmental Monitor Station of Tianjin Port Free Trade Zone,Tianjin,300308,China)

机构地区：[1]天津港保税区环境监测站,天津300308

出　　处：《江西化工》2022年第4期16-18,共3页Jiangxi Chemical Industry

摘　　要：本文对水中pH值的测定进行了方法验证,以确定实验室是否具有水中pH值测定的检测能力。此外,pH计的校准、pH电极的性能、标准缓冲溶液、空气中二氧化碳、样品的温度和pH计的维护与保养等都会影响pH值结果,本文对其影响因素进行了探讨分析,以确保实验检测数据的准确性和可靠性,从而逐步提高水中pH值检测数据的准确性。The method validation was carried out for the determination o£pH in water,to determine whether the laboratory has the detection ability for the determination of pH in water.Calibration of pH meter,performance of pH electrode,standard buffer solution,carbon dioxide in air,sample temperature and maintenance of pH meter will all affect pH results.The influencing factors were discussed and analyzed to ensure the accuracy and reliability of the test dat,gradually improve the accuracy o£the pH test data in water.

关 键 词：PH值 方法验证 影响因素 

分 类 号：X832[环境科学与工程—环境工程]