使用激光诱导光的辅助LIBS在土壤中的量化
Shweta Soni1,2, Jan Viljanen1, Risto Uusitalo3
1Photonics Laboratory, Physics Unit, Tampere University, FI-33101, Tampere, Finland.
Heliyon
|July 6, 2023
概括
准确地监测土壤对于农业和防止肥沃化至关重要. 激光诱导的光分解光谱 (LIBS-LIF) 为可溶提供了更好的检测极限,减少了实验室的工作.
科学领域:
- 农业科学 农业科学
- 分析化学 分析化学
- 环境科学 环境科学
背景情况:
- 测量土壤对于可持续的农业和防止水缩至关重要.
- 缺乏会对作物发展和生长产生负面影响.
- 精确地监测土壤是最佳农业实践的必要条件.
研究的目的:
- 引入激光诱导分解光谱技术,辅助激光诱导光 (LIBS-LIF),用于量化土壤中容易溶解的.
- 为了比较LIBS-LIF的分析性能与传统的激光诱导分解光谱 (LIBS) 方法.
- 评估不同类型土壤中可溶的检测极限和高通量分析的潜力.
主要方法:
- 利用激光诱导的分解光谱学辅助激光诱导光 (LIBS-LIF) 进行土壤分析.
- 采用不同含量的矿物土壤用于方法开发和验证.
- 生成校准曲线以确定可溶的检测极限.
主要成果:
- 与传统的LIBS相比,LIBS-LIF显著提高了可溶的检测极限.
- 粘土土的LIBS-LIF检测极限为0.12 mg/kg,泥土的粘土/泥土为0.27 mg/kg.
- 使用LIBS-LIF实现的检测极限与已建立的化学土壤分析相当.
结论:
- LIBS-LIF提供了一种更敏感的方法来量化可溶性土壤.
- 与传统方法相比,这种技术大大减少了样本准备和实验室工作量.
- LIBS-LIF显示了高通量土壤分析的潜力,在特定土壤类型内进行校准.
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