高通量多参数水质仪自动测定水样的研究

Developement of an automated high-throughput water quality test equipment

针对环境监测中水样的批量测试需求,设计了一套全自动化高通量水质检测设备,用于同时测试水样pH值和电导率值。批量测试可直接软件操作,全程无需人工干预。测试标准缓冲溶液的相对标准偏差为0.0000~0.0053;测定误差为-0.00291±0.0146pH(平均误差±标准偏差,n=53)。测定地表水水样pH值与传统方法相关系数为0.9360,误差范围-0.0141±0.0370pH(平均误差土标准偏差,n=50),电导率值测试与传统方法的相关系数为0.9987,误差范围-1.170±0.474%(平均误差士标准偏差,n=50);测定废水水样pH值与传统方法测试相关系数为0.9936,误差范围-0.00444±0.0385pH(平均误差±标准偏差,n=18)。

A set of fully automated high‐throughput water quality test equipment used for testing wa‐ter pH value and conductivity value at the same time was developed .It can be operated by software con‐veniently and need no human interference. The determination error for standard buffer solution is 0.00291 ± 0.0146pH (average error ± standard deviation ,n=53). The correlation factor between the auto‐deter‐mination method and the traditional method is up to 0.9987 .