摘要
本文介绍了单醉离子色谱法测定酸雨中的氟、氯、硝酸根，硫酸根离子的方法．采用Shim－PackIC-Al分离柱．用25mmol邻苯二甲酸和2.4mmol三（羟甲基）甲胺溶液作流动相（pH＝4.0），流速为1.5ml/min．各离子的流分用电导检测，进样量为20μl时．F－、Cl－、的最低检出限（2倍噪音比）分别为0.009，0.016，0.020．0.042μg／ml．
A method for determination of anions (F-, Cl-, NO, SO) in acid rain by ion chromatography with shim-pack IC-Al separator column is introduced in this paper, The mobile phase used was 2.5 mmol phthalic acid and 2.4 mmol tris (hydroxymethyl) aminomethane (pH 4.0) solution at the flow rate at 1.5 ml/min. Anions in fractions that elutedfrom the column were determined by conductor. Detection linits(2 signal-to-noise) were 0.009 μg/ml for F,0.016 μg/ml for Cl-, 0.020 μg/ml for NO, and 0.042 μg/ml for SO.
基金
广东省青年科学基金
关键词
离子色谱法
酸雨
阴离子
ion chromatagraphy, acid rain, anions
