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| Determination of thirty-nine elements in environmental soil by Inductively Coupled Plasma Mass Spectrometry with four acid digestion |
| Received:August 19, 2021 Revised:September 21, 2021 |
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| DOI：10.3969/j.issn.2095-1035.2022.03.014 |
| KeyWord:inductively coupled plasma mass spectrometry; soil environmental quality of national network; internal standard element |
| Author | Institution |
| zhanggengyu |
吉林省吉林生态环境监测中心 |
| wuchao |
吉林省吉林生态环境监测中心 |
| CUI Haiyang |
中国建筑材料工业地质勘查中心 |
| LI Na |
中国建筑材料工业地质勘查中心 |
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| Abstract: |
| Based on four acid digestion to digest soil, this paper established the new method to determine thirty-nine elements including the national network soil environmental quality survey task, and the internal standard selection of 39 elements covered was analyzed. The concept of "main interference weight" was established, the internal standard elements were analyzed and 103Rh、115In、185Re、193Ir were selected as internal standard elements for environmental soil analysis and testing. The results showed that 103Rh and 115In had good correction effect for low quality elements, and 185Re and 193Ir had good correction effect for high quality elements. The linear correlation coefficients of the calibration curves were all greater than 0.999, and the detection limits were between 0.001~2.9μg/g. the method was validated by GSS-8 standard soil. The RSD of GSS-8 was between 1.7%~19.1%, and the recoveries were between 80%~121%. The analysis method has good accuracy and precision, and is suitable for promotion and use in the national network soil environmental quality investigation task. |
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