Detection of cadmium in soils using laser-induced breakdown spectroscopy combined with spatial confinement and resin enrichment

Fu, Xinglan; Li, Guanglin; Tian, Hui Qiao; Dong, Daming

doi:10.1039/c8ra07799a

Cited by 29 publications

(10 citation statements)

References 29 publications

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“…The use of spatial confinement, such as a hemispherical cavity, V-shaped plate, or cylindrical confinement, is a simple and convenient method for LIBS signal enhancement. Guo et al utilized an aluminum hemispherical cavity to confine the plasma generated by a KrF excimer laser on a steel target, and a significant enhancement in the emission intensity of the Mn lines was observed (factor > 12).…”

Section: Introductionmentioning

confidence: 99%

Novel Signal Enhancement Strategy for Laser-Induced Breakdown Spectroscopy via Miniaturized Atmospheric Pressure Glow Discharge

Cai

Wang

2022

Anal. Chem.

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Section: Introductionmentioning

confidence: 99%

Novel Signal Enhancement Strategy for Laser-Induced Breakdown Spectroscopy via Miniaturized Atmospheric Pressure Glow Discharge

Cai

Wang

2022

Anal. Chem.

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“…Therefore, combination of nanoparticles with DP-LIBS has been investigated, and was found to increase the LIBS signal 30 times [107]. Resin enrichment combined with the spatial constraint method reportedly decreases the LOD of Cd from 0.3 to 0.132 mg.kg −1 [108].…”

Section: Combination Of Multiple Methodsmentioning

confidence: 99%

Improving the Detection Sensitivity for Laser-Induced Breakdown Spectroscopy: A Review

Dong

2020

Front. Phys.

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Laser-induced breakdown spectroscopy (LIBS) is fast, on-line, causes little sample damage, and can be applied in remote field locations. In recent years, LIBS has been widely used in many fields of scientific research for element detection. Further application of LIBS is limited by the strong matrix effect, poor repeatability, and relatively weak detection sensitivity. The detection sensitivity is an important factor and needs to be improved for LIBS detection of minor or trace elements in samples. A variety of methods have been developed to improve detection sensitivity of LIBS. In this invited review paper, we discuss improvements in the LIBS detection sensitivity achieved with physical enhancement methods, chemical enhancement methods, mathematical methods, and combinations of multiple methods. We discuss the enhancement mechanisms, sensitivity improvements, configurations, and effects of key factors for various methods. The advantages, disadvantages, and real-time capabilities of these methods are reviewed. Finally, new trends and future perspectives for LIBS as an efficient analytical tool are discussed.

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“…In addition, Fu, et al [ 95 ] designed a V-shaped spatial constraint to detect and analyze the heavy metal element Cd in soil. The experimental results showed that this device improved the LOD of the element Cd to 0.123 mg/kg.…”

Section: Adding Auxiliary Devices Enhanced Libs For Heavy Metal Detec...mentioning

confidence: 99%

Enhanced Laser-Induced Breakdown Spectroscopy for Heavy Metal Detection in Agriculture: A Review

Yang

Ren

et al. 2022

Sensors

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Heavy metal pollution in agriculture is a significant problem that endangers human health. Laser-induced breakdown spectroscopy (LIBS) is an emerging technique for material and elemental analysis, especially heavy metals, based on atomic emission spectroscopy. The LIBS technique has been widely used for rapid detection of heavy metals with its advantages of convenient operation, simultaneous detection of multi-elements, wide range of elements, and no requirement for the state and quantity of samples. However, the development of LIBS is limited by its detection sensitivity and limit of detection (LOD). Therefore, in order to improve the detection sensitivity and LOD of LIBS, it is necessary to enhance the LIBS signal to achieve the purpose of detecting heavy metal elements in agriculture. This review mainly introduces the basic instruments and principles of LIBS and summarizes the methods of enhanced LIBS signal detection of heavy metal elements in agriculture over the past 10 years. The three main approaches to enhancing LIBS are sample pretreatment, adding laser pulses, and using auxiliary devices. An enhanced LIBS signal may improve the LOD of heavy metal elements in agriculture and the sensitivity and stability of the LIBS technique. The enhanced LIBS technique will have a broader prospect in agricultural heavy metal monitoring and can provide technical support for developing heavy metal detection instruments.

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Detection of cadmium in soils using laser-induced breakdown spectroscopy combined with spatial confinement and resin enrichment

Abstract: The determination of heavy metals in soils is of great significance for the monitoring and control of environmental pollution.

Cited by 29 publications

References 29 publications

Novel Signal Enhancement Strategy for Laser-Induced Breakdown Spectroscopy via Miniaturized Atmospheric Pressure Glow Discharge

Novel Signal Enhancement Strategy for Laser-Induced Breakdown Spectroscopy via Miniaturized Atmospheric Pressure Glow Discharge

Improving the Detection Sensitivity for Laser-Induced Breakdown Spectroscopy: A Review

Enhanced Laser-Induced Breakdown Spectroscopy for Heavy Metal Detection in Agriculture: A Review

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