Laser ablation methods for analysis of urinary calculi: Comparison study based on calibration pellets

K. Štěpánková, K. Novotný, M. Vašinová Galiová, V. Kanický, J. Kaiser, D. W. Hahn

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Methods based on laser ablation, such as Laser-Induced Breakdown Spectroscopy (LIBS) and Laser-Ablation Inductively Coupled Plasma Mass/Optical Emission Spectrometry (LA-ICP-MS/OES) are particularly suitable for urinary calculi bulk and micro analysis. Investigation of spatial distribution of matrix and trace elements can help to explain their emergence and growth. However, quantification is still very problematic and these methods are often used only for qualitative elemental mapping. There are no commercially available standards, which would correspond to the urinary calculi matrix. Internal standardization is also difficult, mainly due to different crystalline phases in one kidney stone. The aim of this study is to demonstrate the calibration capabilities and examine the limitations of laser ablation based techniques. Calibration pellets were prepared from powdered human urinary calculi with phosphate, oxalate and urate matrix. For this comparative study, the most frequently used laser-ablation based analytical techniques were chosen, such as LIBS and LA-ICP-MS. Moreover, some alternative techniques such as simultaneous LIBS-LA-ICP-OES and laser ablation LA-LIBS were also utilized.

Original languageEnglish (US)
Pages (from-to)43-49
Number of pages7
JournalSpectrochimica Acta - Part B Atomic Spectroscopy
Volume81
DOIs
StatePublished - Mar 1 2013
Externally publishedYes

Keywords

  • LA-ICP-MS/OES
  • LA-LIBS
  • Laser ablation
  • LIBS
  • Urinary calculi

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Instrumentation
  • Spectroscopy

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