植物中重金属的高效检测：微流体方法与激光诱导击穿光谱相结合。

IF 6.2 1区农林科学 Q1 AGRICULTURE, MULTIDISCIPLINARY

Journal of Agricultural and Food Chemistry Pub Date : 2025-10-03 DOI:10.1021/acs.jafc.5c08130

Haotian Yang,Shijie Zhang,Chengxiang Duan,Yuanxin Wan,Yujie Shi,Xiaochan Wang,Gang Liu,Guo Zhao,Xiande Zhao

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引用次数: 0

摘要

植物中重金属的检测对保障植物和人类的健康至关重要。然而，现有的检测技术受到成本高和可能损坏植物样品的限制。本文提出了一种结合激光诱导击穿光谱（LIBS）的可穿戴纸基微流体液富集（PMSE）装置。采用比色法对滤纸直径、孔径等关键参数进行优化，确保高效、均匀地富集HM。经cunps修饰的滤纸能有效富集HMs和增强LIBS信号，在0 ~ 150 ppb浓度范围内检测黄瓜植株中的Cd（II）和Pb（II）。该方法对Cd（II）的检出限为3 ppb，对Pb（II）的检出限为5 ppb。本研究为植物中重金属的快速检测提供了理论依据和技术支持。

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Efficient Heavy Metals Detection in Plants: A Microfluidic Approach Combined with Laser-Induced Breakdown Spectroscopy.

The detection of heavy metals (HMs) in plants is essential for ensuring the health of both plants and humans. Nevertheless, existing detection techniques are limited by high costs and their potential to damage plant samples. In this paper, a wearable paper-based microfluidic sap enrichment (PMSE) device combined with laser-induced breakdown spectroscopy (LIBS) is presented. Colorimetric analysis was employed to optimize critical parameters of the HM-enrichment filter paper, including its diameter and pore size, ensuring efficient and uniform HM accumulation. The CuNPs-modified filter paper effectively enriched HMs and enhanced LIBS signals, enabling the detection of Cd(II) and Pb(II) in cucumber plants across a concentration range of 0-150 ppb. The method achieved detection limits of 3 ppb for Cd(II) and 5 ppb for Pb(II). This study provides a theoretical basis and technical support for the rapid detection of heavy metals in plants.

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来源期刊

Journal of Agricultural and Food Chemistry 农林科学-农业综合

CiteScore

9.90

自引率

8.20%

发文量

1375

审稿时长

2.3 months

期刊介绍： The Journal of Agricultural and Food Chemistry publishes high-quality, cutting edge original research representing complete studies and research advances dealing with the chemistry and biochemistry of agriculture and food. The Journal also encourages papers with chemistry and/or biochemistry as a major component combined with biological/sensory/nutritional/toxicological evaluation related to agriculture and/or food.