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Application of Atomic Absorption Spectroscopy to the determination of trace elements Cu, Pb, Zn, Cd and Mn in the same total digestion solution of solid waste
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| Tianjin Cement Industry Design & Research Institute Co., Ltd. |
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Abstract A procedure was developed for the determination of five toxic trace elements, namely Cu, Pb, Zn, Cd and Mn in solid waste by Atomic Absorption Spectrometry (AAS). The microwave digestion conditions, sample weight, detection media and instrument condition were investigated. The sample was treated by HNO3-HF digestion and HClO4 was chosen to destroy organic matter. Under specific experimental conditions, the above-mentioned five trace elements in the same sample were analyzed continuously by AAS. Under the optimal operational conditions of the instrument, method detection limits for Cu, Pb, Zn, Cd and Mn are 0.037, 0.294, 0.030, 0.015 and 0.022mg/L, respectively. The relative standard deviations (RSD) for Cu, Pb, Zn, Cd and Mn are 3.1%, 2.5%, 4.0%, 6.6% and 4.2%, respectively. In comparison with the national primary reference materials, the results show good agreement with standard values. This simple and reliable method can be applied for batch sample analysis.
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Received: 16 August 2010
Published: 14 June 2018
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JI Lei, ZHAO Xuhong, CAO Pei, ZHAO Yu, SUN He, HUANG Yongsheng, WEI Juan, ZHANG Guangfang, YU Gang, WU De Hou, . Study of Typical Pollutants' Solidification in Clinker in the Co-processing Hazardous Waste in Cement Kiln[J]. Cement Technology, 2018, 1(2): 31-35. |
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