Detection of available heavy metals in soil using gold nanoparticles-modified ion exchange membrane with laser-induced breakdown spectroscopy
文献类型： 外文期刊
作者： Fu, Xinglan 1 ; Gou, Yujiang 1 ; Li, Guanglin 1 ; Zhao, Shilin 1 ; Ma, ShiXiang 2 ; Zhao, Chunjiang 1 ;
作者机构： 1.Southwest Univ, Coll Engn & Technol, Chongqing 400716, Peoples R China
2.Beijing Acad Agr & Forestry Sci, Natl Engn Res Ctr Informat Technol Agr, Beijing 100097, Peoples R China
关键词： Laser-induced breakdown spectroscopy; Gold nanoparticles; Sensitive detection; Heavy metals; Soil
期刊名称：MICROCHEMICAL JOURNAL （ 影响因子：4.9； 五年影响因子：4.5 ）
ISSN： 0026-265X
年卷期： 2024 年 204 卷
页码：
收录情况： SCI
摘要： The available heavy metals in soil can directly threaten food security and human health. However, traditional detection methods are often complicated and time-consuming. In this study, a novel method with nanoparticlesmodified ion exchange membrane with laser-induced breakdown spectroscopy (NMIEM-LIBS) was proposed for the sensitive detection of available heavy metals in soil samples. Gold nanoparticles modified-ion exchange membrane was used to high-efficiency enrich lead (Pb) and cadmium (Cd) ions in soil solution and detected after separation. This method can realize the highly sensitive quantitative analysis of available Pb and Cd in soil, with the detection limits (LoDs) of 2.62 mg/kg and 0.24 mg/kg, respectively. Furthermore, the method was successfully applied to detect available Pb and Cd concentrations in three spiked soil samples, with recoveries of 87.02-115.79 % and 82.45-114.81 %, respectively. The developed method can provide a simple, rapid, and sensitive strategy for monitoring available heavy metals in environmental samples.
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