Study On Simultaneous Determination of Ni, Pb and Cd by Ion Chromatography

2018 2nd International Conference on Environmental and Energy Engineering

生态环境科学;能源学

Gao, P.F.^1 ; Zhang, X.W.^1 ; Kuang, H.Z.^1 ; Li, Q.Q.^1 ; Li, Y.^1

College of Environmental Science and Engineering, Xiamen University of Technology, Xiamen

361024, China^1

关键词: Chromatographic conditions;    Chromatographic methods;    Conductivity detectors;    Correlation coefficient;    Dipicolinic acids;    Linear relationships;    Simultaneous determinations;    Toxic heavy metals;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/146/1/012068/pdf
DOI  :  10.1088/1755-1315/146/1/012068

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In this paper, a ion chromatographic method was established for simultaneously determining three toxic heavy metal ions(Ni2+, Pb2+, Cd2+) . The optimal chromatographic conditions are using a conductivity detector, with the Metrosep C4column was used, the mixture of 0.07mmol/L nitric acid and 0.5mmol/L dipicolinic acid as eluent, the flow rate was 0.25 mL/min. Three kinds of heavy metals all showed satisfying linear relationships, and the correlation coefficients ranged from 0.9979 to 0.9994. The detection limits were in the range of 0.01-0.05 mg/L. The method is an easy, accurate and reliable way to assess soil heavy metal pollution.