Research on Automatic Permanganate Index Analysis System Based on Robotics and Pipeline Technology
In this paper,the permanganate index of water quality was determined by two sets of automatic analysis systems.When the sample volume is 100 mL,the detection limits of the acid method of the two systems are 0.05 mg/L and 0.08 mg/L respectively,the relative standard deviation of the standard sample is 0.86%～2.7%,the relative error is 1.2%～7.8%,and the relative standard deviation of the actual water sample is 0%～8.0%.The detection limits of the alkaline method are 0.10 mg/L and 0.06 mg/L,respectively.The relative standard deviation of the standard sample is 0.66%～5.2%,and the relative error is 0.25%～11%.Compared with the traditional manual titration,the automatic analysis method has no significant difference,and the methodological indicators are better than the traditional method.The fully automatic permanganate index analysis system based on robot and pipeline technology completes the functions of automatic sample injection,automatic dilution,automatic transmission and automatic cleaning,etc.through the corresponding modules.It uses the whole process video to monitor the color change process of the water sample and accurately determine the end point,improving the accuracy and precision of the analysis results,while leaving traces throughout the process,further strengthening the quality control measures,and has broad prospects in chemical analysis and practical application of environmental monitoring.
NETL
NSTL
万方数据
