一种可质控高锰酸盐指数自动分析仪设计及实验

Design and experimental study on quality-controlled CODMn analyzer

传统高锰酸盐指数水质自动分析仪在长期运行中,可能由于试剂失效、器件异常等原因导致分析仪测试结果可信度难以评判等问题。该文设计了一种可对仪器运行质量评价的高锰酸盐指数自动分析仪,介绍了分析仪测量原理、系统设计及质控设计方法,并通过实验验证了分析仪的性能和质控评价结果。实验表明,分析仪测量重复性良好,标液核查质控和加标回收质控测试结果可信度高,可较好的实现高锰酸盐指数的监测和分析仪运行质量控制评价,具有较好的应用和推广价值。

The reliability of the traditional CODMn analyzer is difficult to evaluate due to the failure of reagents and abnormal devices.A new CODMn analyzer with the function of operation quality control(QC)is designed,The measuring principle,system design,and quality control design method of the analyzer are introduced.The experiments show that the analyzer has good repeatability,high reliability of quality control results of standard liquid verification and recovery,which can better monitoring of permanganate index and quality control of analyzer operation,which has good application and promotion value.