Accuracy improvement on quantitative analysis of the total iron content in branded iron ores by laser-induced breakdown spectroscopy combined with double back propagation artificial neural network

2022 ◽  
Author(s):  
Piao Su ◽  
Shu Liu ◽  
Hong Min ◽  
Yarui An ◽  
Chenglin Yan ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Back Propagation ◽  
Total Iron ◽  
Iron Ores ◽  
Total Iron Content ◽  
Accuracy Improvement ◽  
Breakdown Spectroscopy ◽  
Accurate Quantitative Analysis ◽  
Laser Induced Breakdown ◽  
The Matrix

The rapid and accurate quantitative analysis of total iron (TFe) content in iron ores is extremely important in global iron ores trade. Due to the matrix effect among iron ores...

Quantitative analysis of phosphorus in steel using laser-induced breakdown spectroscopy in air atmosphere

2014 ◽  
Vol 29 (8) ◽  
pp. 1432-1437 ◽  
Author(s):  
Chang Mao Li ◽  
Zhi Min Zou ◽  
Xin Yan Yang ◽  
Zhong Qi Hao ◽  
Lian Bo Guo ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Laser Induced Breakdown Spectroscopy ◽  
Breakdown Spectroscopy ◽  
Strong Interference ◽  
Air Atmosphere ◽  
Laser Induced Breakdown ◽  
The Matrix

The quantitative analysis of phosphorus in iron/steel in air atmosphere is considered a challenge for LIBS due to strong interference from the matrix.

Quantitative Analysis of LIBS Reduces the Matrix Effect Methods

2013 ◽  
Vol 313-314 ◽  
pp. 579-582
Author(s):  
You Liang Yang ◽  
Jun Xiang Li ◽  
Fan Wei Meng ◽  
Cui Hong Ma
Keyword(s):  
Quantitative Analysis ◽  
Matrix Effect ◽  
Correction Method ◽  
Analysis Method ◽  
Network Reduction ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown ◽  
The Matrix ◽  
Quantitative Analysis Method ◽  
The Impact

This paper introduced the principle about the technology of Laser-induced Breakdown Spectroscopy (LIBS) of quantitative analysis. It was reviewed about the quantitative analysis of LIBS reduced method of matrix. The reason of cause matrix effect was not clear, but the matrix effect on the LIBS quantitative analysis of the impact can not be ignored. The LIBS quantitative analysis method was divided into two categories: one was based on the calibration curve with the mathematical matrix correction method; the other was combined with neural network reduction method of matrix. This paper was introduced for the two categories of methods, and gives an example to explain.

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.

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