CAJ | 학술논문

采用KOH梯度淋洗离子色谱法测定地表水和饮用水中ClO2-、BrO3-和ClO3-，在试验确定的条件下，3种离子与F-、Cl-、NO2-、NO3-、SO2-4、Br-、I-等7种离子分离度良好。 ClO2-、BrO3-、ClO3-在50．0μg/L～1000μg/L范围内线性良好，检出限分别为5．2μg/L、8．9μg/L、7．6μg/L，环境水样加标平行测定的RSD分别为2．1％～5．4％、4．1％～5．4％、2．5％～4．8％，两个质量浓度水平加标的平均回收率分别为93．7％～96．5％、90．3％～94．8％、98．7％～111％。
채용KOH제도림세리자색보법측정지표수화음용수중ClO2-、BrO3-화ClO3-，재시험학정적조건하，3충리자여F-、Cl-、NO2-、NO3-、SO2-4、Br-、I-등7충리자분리도량호。 ClO2-、BrO3-、ClO3-재50．0μg/L～1000μg/L범위내선성량호，검출한분별위5．2μg/L、8．9μg/L、7．6μg/L，배경수양가표평행측정적RSD분별위2．1％～5．4％、4．1％～5．4％、2．5％～4．8％，량개질량농도수평가표적평균회수솔분별위93．7％～96．5％、90．3％～94．8％、98．7％～111％。
An ion chromatography method for determining chlorite , bromate and chlorate in surface water and drinking water was studied .The separation of the anions was achieved on an IonPac AS 19 Column with KOH as eluent, the chlorite, bromate, chlorate and other 7 kinds of anions could be well separated and determined within 25 min by employing a concentration gradient .The method has good linearity during the concentration 50.0 μg/L ~1 000 μg/L.The method detection limits of chlorite, bromate and chlorate was 5.2 μg/L, 8.9 μg/L and 7.6 μg/L, respectively.The RSD of the samples were 2.1%~5.4% ( chlorite), 4.1%~5.4%(bromate), and 2.5%~4.8% (chlorate).The recoveries of chlorite, bromate and chlorate in water samples were 93.7%~96.5%, 90.3%~94.8%and 98.7%~111%.