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| Determination of 7 metal elements in biogeochemical plant samples by ICP-MS with interactive mode |
| Received:August 04, 2022 Revised:August 10, 2022 |
| View Full Text View/Add Comment Download reader |
| DOI：doi:10.3969/j.issn.2095-1035.2023.05.008 |
| KeyWord:ICP-MS; Plant samples; Selenium; Interactive mode；heavy metal；ecological geochemistry |
| Author | Institution |
| YAN Qiao LI |
中国地质调查局 长沙自然资源综合调查中心 |
| NIE Xiaoli |
中国地质调查局 长沙自然资源综合调查中心 |
| YANG Yuan |
湖南农业大学 资源环境学院 |
| CEN Min |
湖南省地质调查所 测试中心 |
| WAN Qian |
中国地质调查局 长沙自然资源综合调查中心 |
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| Abstract: |
| The content of each element in plant samples is an important index to evaluate soil quality and health. In order to meet the analysis requirements for the determination of polymetallic elements in large quantities of eco-geochemical plant samples, a quantitative analysis method for the determination of seven trace metal elements in plant samples by interactive mode-ICP-MS was established. The results of the determination of 7 metal elements in plant samples by three methods of STD, KED (He) and interactive mode in ICP-MS were discussed. The experimental results show that using the working curve method to prepare the Hg standard solution and changing the coefficient of 82Se online correction equation to 1.83,the determination of 82Se, 63Cu, 60Ni, 66Zn, 111Cd, 75As and 202Hg in plant samples in the interactive mode of ICP-MS can be accurate and reliable . As a result, the difficult problem of Se and Hg element determination in plant samples was overcome. The calibration curve coefficient of each element was > 0.999. The detection limit of the method is 0.0004-0.08 mg/kg. The recovery rate is between 96.2% and 107%, the determination of GBW10010a (rice), GBW10012 (corn) ,GBW10021 (bean) three reference materials were determined, and the determination results were within the reference value range, the relative standard deviation RSD < 10%. The method has the advantages of simple operation, fast analysis speed, good accuracy and high sensitivity , and is suitable for simultaneous determination of polymetallic elements in plant samples for ecological geochemical evaluation. It provides a new idea for the rapid determination of metal elements in plant samples for multi-sphere chemical investigation. |
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