The Research of Determination of Iodide in Underground Water by Ion Chromatography
An ion chromatography method for determining iodide in underground water was established.AS19 separation col-umn with conductivity detector was employed.The electric current of anion electrolytic regeneration inhibitor was 99 mA,the eluent was 40 mmol/L KOH solution,the flow rate was 1.00 mUmin,the dectction temperature was 30℃ and the injec-tion volume was 250 μL.The mass concentration of iodide in the range of 0.010 mg/L-1.00 mg/L had good linear relation-ship with the chromatographic peak area,the linear correlation coefficient r was 0.9998.The detection limit was 0.001 mg/L,the relative standard deviations were 0.4％-8.3％,the recovery rates were 99.0％-115.0％,and the analysis results of the certified substances were excellent,its relative deviation was 2.5％.And the determination results of iodide in underground water by the ion chromatography were satisfactory.
Ion ChromatographyIodideUnderground WaterDetermination
万方数据
维普
