Abstract We present trace constituents of three plants of Onion (Allium cepa L.), grown in the prepared soil containing varying concentration of copper under controlled environment to check its remediation capacity using Laser Induced Breakdown Spectroscopy (LIBS). The quantitative analysis of the samples was performed using Atomic Absorption Spectroscopy (AAS). The deduced concentration of copper was 0.05, 0.085 and 0.17 ppm for different leaves samples prepared with 10, 20 and 30 mg L−1 copper dose added in the germination soils through water. The limit of detection (LOD) of copper (Cu) in the samples has been improved to about 0.028 ppm using the electric field assisted LIBS technique.

中文翻译：

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使用电场辅助激光诱导击穿光谱法量化洋葱叶中的铜修复

摘要 我们介绍了洋葱 (Allium cepa L.) 三种植物的微量成分，这些植物生长在受控环境下含有不同浓度铜的制备土壤中，以使用激光诱导击穿光谱 (LIBS) 检查其修复能力。使用原子吸收光谱法 (AAS) 对样品进行定量分析。对于通过水在发芽土壤中添加 10、20 和 30 mg L-1 铜剂量制备的不同叶子样品，推断出的铜浓度为 0.05、0.085 和 0.17 ppm。使用电场辅助 LIBS 技术，样品中铜 (Cu) 的检测限 (LOD) 已提高至约 0.028 ppm。