Comparison of the matrix effect in laser induced breakdown spectroscopy analysis of coal particle flow and coal pellets

2021 ◽  
Author(s):  
Ziyu Yu ◽  
Shunchun Yao ◽  
Yuan Jiang ◽  
Weize Chen ◽  
Shuixiu Xu ◽  
...  
Keyword(s):  
Matrix Effect ◽  
Coal Particle ◽  
Particle Flow ◽  
Laser Induced Breakdown Spectroscopy ◽  
Spectroscopy Analysis ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
The Matrix

Laser-induced breakdown spectroscopy analysis of coal particle flow presents milder matrix effect compared with coal pellet.

Experimental Study of Laser-Induced Breakdown Spectroscopy (LIBS) for Direct Analysis of Coal Particle Flow

2014 ◽  
Vol 68 (6) ◽  
pp. 672-679 ◽  
Author(s):  
Jianping Zheng ◽  
Jidong Lu ◽  
Bo Zhang ◽  
Meirong Dong ◽  
Shunchun Yao ◽  
...  
Keyword(s):  
Experimental Study ◽  
Coal Particle ◽  
Direct Analysis ◽  
Particle Flow ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

Investigation of the Matrix Effect on the Accuracy of Quantitative Analysis of Trace Metals in Liquids Using Laser-Induced Breakdown Spectroscopy with Solid Substrates

2016 ◽  
Vol 70 (12) ◽  
pp. 2016-2024 ◽  
Author(s):  
Junshan Xiu ◽  
Lili Dong ◽  
Hua Qin ◽  
Yunyan Liu ◽  
Jin Yu
Keyword(s):  
Quantitative Analysis ◽  
Trace Metals ◽  
Matrix Effect ◽  
Solid Substrate ◽  
Laser Induced Breakdown Spectroscopy ◽  
Paper Substrate ◽  
Viscous Liquids ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
The Matrix

The detection limit of trace metals in liquids has been improved greatly by laser-induced breakdown spectroscopy (LIBS) using solid substrate. A paper substrate and a metallic substrate were used as a solid substrate for the detection of trace metals in aqueous solutions and viscous liquids (lubricating oils) respectively. The matrix effect on quantitative analysis of trace metals in two types of liquids was investigated. For trace metals in aqueous solutions using paper substrate, the calibration curves established for pure solutions and mixed solutions samples presented large variation on both the slope and the intercept for the Cu, Cd, and Cr. The matrix effects among the different elements in mixed solutions were observed. However, good agreement was obtained between the measured and known values in real wastewater. For trace metals in lubricating oils, the matrix effect between the different oils is relatively small and reasonably negligible under the conditions of our experiment. A universal calibration curve can be established for trace metals in different types of oils. The two approaches are verified that it is possible to develop a feasible and sensitive method with accuracy results for rapid detection of trace metals in industrial wastewater and viscous liquids by laser-induced breakdown spectroscopy.

Determination of micronutrient elements in soil using laser-induced breakdown spectroscopy assisted by laser-induced fluorescence

2021 ◽  
Author(s):  
Ran Zhou ◽  
Ke Liu ◽  
Zhiyang Tang ◽  
Zhongqi Hao ◽  
Xiangyou Li ◽  
...  
Keyword(s):  
Matrix Effect ◽  
Laser Induced Fluorescence ◽  
Laser Induced Breakdown Spectroscopy ◽  
Absorption Effect ◽  
Soil P ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
The Matrix

LIBS assisted by laser-induced fluorescence was introduced to solve the matrix effect and self-absorption effect in the determination of essential micronutrient elements in soil.

Improved measurement of the calorific value of pulverized coal particle flow by laser-induced breakdown spectroscopy (LIBS)

2019 ◽  
Vol 11 (35) ◽  
pp. 4471-4480 ◽  
Author(s):  
Wenbing Li ◽  
Meirong Dong ◽  
Shengzi Lu ◽  
Shishi Li ◽  
Liping Wei ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Real Time ◽  
Coal Particle ◽  
Calorific Value ◽  
Pulverized Coal ◽  
Particle Flow ◽  
Laser Induced Breakdown Spectroscopy ◽  
The Real ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

The real-time quantitative analysis of the calorific value of pulverized coal particle flow is important for the efficient and clean combustion of coal.

Spectral clustering based on histogram of oriented gradient (HOG) of coal using laser-induced breakdown spectroscopy

2021 ◽  
Author(s):  
Ji Chen ◽  
Kaiping Zhan ◽  
Qingzhou Li ◽  
Zhiyang Tang ◽  
Chenwei Zhu ◽  
...  
Keyword(s):  
Spectral Clustering ◽  
Matrix Effects ◽  
Unsupervised Clustering ◽  
Laser Induced Breakdown Spectroscopy ◽  
Histogram Of Oriented Gradient ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
The Matrix ◽  
Quantification Accuracy

The quantification accuracy of laser-induced breakdown spectroscopy was limited due to matrix effects. In this work, a method named unsupervised-clustering-based quantification (UCQ) was proposed to reduce the matrix effects by...

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