Determination of Al in High Speed Rail Soil by Inductively Coupled Plasma Atomic Emission Spectrometry(ICP-AES)
Received:March 19, 2019  Revised:April 12, 2019
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DOI:10.3969/j.issn.2095-1035.2019.04.010
KeyWord:ICP-AES ; High Speed Rail Soil; High Aluminum Determination
           
AuthorInstitution
tangyushuang 湖南省有色地质勘查研究院
suweihan 湖南省有色地质勘查研究院
xuhongliu 湖南省有色地质勘查研究院
dengshupei 湖南省有色地质勘查研究院
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Abstract:
      Al in high-speed rail soil was determined by ICP-AES using alkali melting and acidification decomposition samples. By expanding the linear range step by step, the suitable spectral line for determining high content Al was selected. The interference of the iron matrix concentration from 20 μg / mL to 80 μg / mL on the spectral lines of Al was investigated by adding the iron matrix step by step in the standard. The national standard substances GSS-1, GSS-2, GSS-3, GSS-4, GSS-5 were measured with ICP-AES, and the relative error(RE) between the measured value and the determined value was -0.37 % to 0.31 %. RSD(N = 5) is 0.26 % ~ 0.75%.
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