Publication detail

Chlorine determination in cement paste samples using laser-induced breakdown spectroscopy and non-matching matrix calibration samples

KRATOCHVILOVÁ, L. PROCHAZKA, D. OPRAVIL, T. POŘÍZKA, P. KAISER, J.

Original Title

Chlorine determination in cement paste samples using laser-induced breakdown spectroscopy and non-matching matrix calibration samples

Type

journal article in Web of Science

Language

English

Original Abstract

This paper deals with determining the chlorine content in cement matrixes using non-matching calibration samples made from microsilica and potassium chloride. We aimed to make easy-to-prepare calibration samples and determine the chlorine content in cement paste samples. To create proper cement paste samples, it is necessary to allow the concrete to mature for 28 days. Also, this methodology enables faster calibration and higher throughput in routine analysis. To suppress the matrix effect, we tested several strategies of signal normalization and then compared the reference (known) and the predicted chlorine content. Best results were obtained when we normalized the intensity of the chlorine line by a parameter proportional to the particle number density which was a priori determined by the intensity of the hydrogen emission line (H alpha) and full width at half-maximum (FWHM). With this parameter, we obtained a high-reliability coefficient for the calibration curve (R2 = 0.99) and the best prediction for total chloride content in cement paste, with a sum of mean squares of the prediction error of 0.22 wt%.

Keywords

REINFORCED-CONCRETE STRUCTURES; ELECTRON-DENSITY; LIBS; SULFUR; NORMALIZATION

Authors

KRATOCHVILOVÁ, L.; PROCHAZKA, D.; OPRAVIL, T.; POŘÍZKA, P.; KAISER, J.

Released

5. 6. 2025

Publisher

Royal Society of Chemistry

Location

CAMBRIDGE

ISBN

1364-5544

Periodical

Journal of Analytical Atomic Spectrometry

Year of study

40

Number

6

State

United Kingdom of Great Britain and Northern Ireland

Pages from

1518

Pages to

1525

Pages count

8

URL

https://pubs.rsc.org/en/content/articlelanding/2025/ja/d4ja00370e

Full text in the Digital Library

http://hdl.handle.net/11012/255177

BibTex

@article{BUT198211,
  author="Lucie {Kratochvilová} and David {Prochazka} and Tomáš {Opravil} and Pavel {Pořízka} and Jozef {Kaiser}",
  title="Chlorine determination in cement paste samples using laser-induced breakdown spectroscopy and non-matching matrix calibration samples",
  journal="Journal of Analytical Atomic Spectrometry",
  year="2025",
  volume="40",
  number="6",
  pages="1518--1525",
  doi="10.1039/d4ja00370e",
  issn="1364-5544",
  url="https://pubs.rsc.org/en/content/articlelanding/2025/ja/d4ja00370e"
}