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Time-resolved spectral-image laser-induced breakdown spectroscopy for precise qualitative and quantitative analysis of milk powder quality by fully excavating the matrix information

Time-resolved spectral-image laser-induced breakdown spectroscopy for precise qualitative and quantitative analysis of milk powder quality by fully excavating the matrix information

Authors :
Deng Zhang
Junfei Nie
Xuechen Niu
Feng Chen
Zhenlin Hu
Xuelin Wen
Yuqiong Li
Lianbo Guo
Source :
Food Chemistry. 386:132763
Publication Year :
2022
Publisher :
Elsevier BV, 2022.

Abstract

A novel and effective method named time-resolved spectral-image laser-induced breakdown spectroscopy (TRSI-LIBS) was proposed to achieve precise qualitative and quantitative analysis of milk powder quality. To verify the feasibility of TRSI-LIBS, qualitative and quantitative analysis of milk powder quality was carried out. For qualitative analysis of foreign protein adulteration, the accuracy of models based on TRSI-LIBS was higher than those based on LIBS, with an accuracy improvement of about 5% to 10%. For the quantitative analysis of foreign protein adulteration and element content, the quantitative analysis models based on TSRI-LIBS also had better effect. For instance, limit of detection (LOD),determination coefficient of prediction (R

Details

ISSN :
03088146
Volume :
386
Database :
OpenAIRE
Journal :
Food Chemistry
Accession number :
edsair.doi.dedup.....9f556b5fc41ef57369469f67e684953d
Full Text :
https://doi.org/10.1016/j.foodchem.2022.132763