Detail publikace

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.

Originální název

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

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

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%.

Klíčová slova

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

Autoři

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

Vydáno

5. 6. 2025

Nakladatel

Royal Society of Chemistry

Místo

CAMBRIDGE

ISSN

1364-5544

Periodikum

Journal of Analytical Atomic Spectrometry

Ročník

40

Číslo

6

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1518

Strany do

1525

Strany počet

8

URL

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

Plný text v Digitální knihovně

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"
}