In:
Applied Optics, Optica Publishing Group, Vol. 62, No. 5 ( 2023-02-10), p. 1167-
Kurzfassung:
A quantitative analysis method for corrosion products based on
terahertz spectroscopy is proposed in this paper. Mixture samples consisting of three major corrosion products (magnetite, hematite, and
goethite) were prepared in 51 different concentrations. The refractive index spectra measured by terahertz time-domain spectroscopy were
projected to the 2D score diagram by performing principal component analysis. The Euclidean distances between the mixtures and pure
analyte on the diagram were used to build a concentration prediction model. The results indicate that the established model can precisely
predict the concentration of magnetite, which is essential for a stability evaluation of the corrosion system.
Materialart:
Online-Ressource
ISSN:
1559-128X
,
2155-3165
Sprache:
Englisch
Verlag:
Optica Publishing Group
Publikationsdatum:
2023
ZDB Id:
207387-0