Objective Due to the poor application effect of current technology in groundwater pollution source water quality monitoring,the recovery rate of pollutants is low,and the RSD is relatively high,aiming at the defects of linear method,the application of ion chromatography technology in groundwater pollution source water quality monitoring is proposed.Methods An automatic sampling device is used to collect water samples upstream of groundwater pollution sources and filter them.By diluting the standard solution of each pollutant,preparing the standard working solution,centrifuging the water sample with the centrifuge,testing the water sample with the ion chromatograph,identifying the pollutants according to the standard working curve and generating the corresponding ion chromatogram,calculating the mass concentration according to the ion content of the pollutant,so as to complete the water quality monitoring of groundwater pollution sources based on the ion chromatographic technology.Results The recovery rate of pollutants is above 90％and the RSD value is lower than 0.1,the application effect of this technology is relatively good.Conclusion The technique has good adaptability and reliability,can be used for water quality monitoring.
ion chromatographygroundwater pollution sourceswater quality monitoringautomatic sampling devicestandard working solutionmass concentration
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