CAJ | 학술논문

建立了饮用水中11种无机阴离子的离子色谱测定法。采用ISC–2100型离子色谱仪测定饮用水中的F–， S2–，BrO3–，Cl–，NO2–，NO3–，ClO2–，ClO3–，I–，SO42–，PO43–11种无机阴离子。水样过0.22μm滤膜后，经IonPac AS19离子色谱柱分离，用KOH溶液梯度洗脱，流量为1.0 mL／min，电导检测器检测，外标法定量。11种阴离子的质量浓度与色谱峰面积在测定范围内呈良好的线性关系(r≥0.9992)，检出限为0.0007～0.005 mg／L，相对标准偏差为0.2%～4.9%(n=6)，加标回收率为87.0%～104.8%。方法简便、快速，精密度和准确度高，适合于饮用水中11种无机阴离子的同时测定。
건립료음용수중11충무궤음리자적리자색보측정법。채용ISC–2100형리자색보의측정음용수중적F–， S2–，BrO3–，Cl–，NO2–，NO3–，ClO2–，ClO3–，I–，SO42–，PO43–11충무궤음리자。수양과0.22μm려막후，경IonPac AS19리자색보주분리，용KOH용액제도세탈，류량위1.0 mL／min，전도검측기검측，외표법정량。11충음리자적질량농도여색보봉면적재측정범위내정량호적선성관계(r≥0.9992)，검출한위0.0007～0.005 mg／L，상대표준편차위0.2%～4.9%(n=6)，가표회수솔위87.0%～104.8%。방법간편、쾌속，정밀도화준학도고，괄합우음용수중11충무궤음리자적동시측정。
The method for the determination of eleven inorganic anions in drinking water by ion chromatography was studied. Eleven inorganic anions of F–,S2–,BrO3–,Cl–,NO2–,NO3–,ClO2–,ClO3–,I–,SO42–,PO43–in drinking water were determined by ISC–2100 ion chromatographic. The sample was filtered through 0.22 μm membrane and separated on a IonPac AS 19 ion column,KOH solution was used for gradient elution,the flow rate was 1.0 mL/min,and the inorganic anions were detected by conductivity detector,external standard method was used for the quantification. The mass concentration of 11 inorganic anions was linear with peak area in the detection range, r ≥ 0.999 2. The detection limit was 0.0007–0.005 mg/L,the relative standard deviations of detection results were 0.2%–4.9% (n=6), and the recoveres were 87.0%–104.8%. The method is simple and fast,it has good precision and accuracy,and it is suitable for the determination of eleven inorganic anions in drinking water.