| 离子色谱法测选矿废水中NO_3~-和SO_4~(2-) |
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| 引用本文： | 于艳,任有良,郭家林.离子色谱法测选矿废水中NO_3~-和SO_4~(2-)[J].商洛学院学报,2014(6):55-56,67. |
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| 作者姓名： | 于艳 任有良 郭家林 |
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| 作者单位： | 商洛学院化学工程与现代材料学院/陕西省尾矿资源综合利用重点实验室 |
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| 基金项目： | 商洛市科技计划项目(SK-2014-6) |
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| 摘 要： | 建立电导检测离子色谱法测定选矿废水中微量NO3-和SO42-含量的新方法。该方法使用Metrosep A Supp5 250/4.0型阴离子色谱柱分离,以3.2 mmol·L-1Na2CO3与1.0 mmol·L-1Na HCO3溶液为淋洗液,流速0.7 m L·min-1进行洗脱,由抑制型电导检测器进行定量测试。实验结果表明:NO3-和SO42-在一定范围内呈线性关系,检出限分别为5.69、8.49 mg·L-1。该方法用于选矿废水试样中2种阴离子的测定,加标回收率NO3-为100.0%,SO42-为107.1%,相对标准偏差小于2%。
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| 关 键 词： | 离子色谱 选矿废水 NO_3~- SO_4~(2-) |
Determination of NO3^- and SO4^2- in Waste Water from Ore Dressing by Ion Chromatography |
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| YU Yan;REN You-liang;GUO Jia-lin.Determination of NO3^- and SO4^2- in Waste Water from Ore Dressing by Ion Chromatography[J].Journal of Shangluo University,2014(6):55-56,67. |
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| Authors: | YU Yan;REN You-liang;GUO Jia-lin |
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| Institution: | YU Yan;REN You-liang;GUO Jia-lin;College of Chemical Engineering and Modern Materials/Shaanxi Key Laboratory of Comprehensive Utilization of Tailings Resources, Shangluo University; |
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| Abstract: | The quantitative determination method is established for NO3-and SO42-in waste water from Ore Dressing by ion chromatography. Anions was separated by Metrosep Supp5 250/4.0 type chromatographic column with 3.2 mmol·L^-1Na2CO3 and 1.0 mmol·L^-1Na HCO3 mix solution as the eluent. Eluent flow rate was 0.7 m L·min^-1.The signal of anions was detected by suppresse d conductivity detection. The observed limits of detection is5.69mg·L^-1,8.49mg·L^-1and the mean relative standard deviation is below 2%, and the recovery ratio is 100.0%,107.1%. |
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| Keywords: | ion chromatography waste water from ore dressing nitrate sulfate |
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