Study of elemental distribution in urinary stones by Laser-Induced Breakdown Spectroscopy

NOVOTNÝ, Karel, Kateřina PROKSOVÁ, Jozef KAISER, David HAHN, Michaela VAŠINOVÁ GALIOVÁ, Petr MARTINEC, Tamara KOŘISTKOVÁ and Viktor KANICKÝ. Study of elemental distribution in urinary stones by Laser-Induced Breakdown Spectroscopy. In North American Symposium on LIBS. 2011.

Basic information

• Original name: Study of elemental distribution in urinary stones by Laser-Induced Breakdown Spectroscopy
• Name in Czech: Studium prvkového rozložení v močových kamenech pomocí spektrometrie laserem buzeného plazmatu
• Authors: NOVOTNÝ, Karel (203 Czech Republic, guarantor, belonging to the institution), Kateřina PROKSOVÁ (203 Czech Republic), Jozef KAISER (203 Czech Republic), David HAHN (840 United States of America), Michaela VAŠINOVÁ GALIOVÁ (203 Czech Republic, belonging to the institution), Petr MARTINEC (203 Czech Republic), Tamara KOŘISTKOVÁ (203 Czech Republic) and Viktor KANICKÝ (203 Czech Republic, belonging to the institution).
• Edition: North American Symposium on LIBS, 2011.

Other information

• Original language: English
• Type of outcome: Conference abstract
• Field of Study: 10406 Analytical chemistry
• Country of publisher: United States of America
• Confidentiality degree: is not subject to a state or trade secret
• RIV identification code: RIV/00216224:14310/11:00050468
• Organization unit: Faculty of Science
• Keywords (in Czech): Spektroskopie laserem buzeného plazmatu LIBS; prvkové mapování; močové kameny
• Keywords in English: Laser induced breakdown spectroscopy; LIBS; elemental distribution; urinary stones
• Tags: International impact

Abstract

The distribution of minor and trace elements in urinary stones, can provide information on their formation. Therefore, analytical methods, which can map the distribution of these elements, should be used. The most common methods include Laser-Induced Breakdown Spectroscopy (LIBS) and Laser Ablation Inductively Coupled Plasma Mass Spectrometry (LA-ICP-MS). Both of these methods have proved suitable for mapping matrix, minor and trace elements. Another objective was to demonstrate the correlation between matrix elements and trace elements and to determine the minerals content. In some cases the results obtained by laser-ablation based methods were linked to the micro computer-tomography (micro CT)analysis. Each of the investigated urinary stone was cut, sealed into a resin and the cross-section of the sample was polished. Depending on the sample size, the whole cross section or its part was mapped by laser-ablation based analytical methods. On the base of these measurements, for samples containing whewellit or weddellit (or both of these minerals), the correlation between calcium and carbon distribution was confirmed. The correlation between magnesium and phosphorus shows the presence of struvite. The correlation between calcium and phosphorus distribution indicates the presence of apatite. In the case of some samples the fluctuation in the signal for calcium and strontium can be observed. This is probably caused by the substitution of strontium ions into the crystal lattice instead of calcium ions due to the same charge and similar ionic radius. The correlation of zinc, sodium or potassium distribution with phosphates was also observed. They are probably the chemical elements that can be associated with apatite.

Abstract (in Czech)

Distribuce minoritních a stopových prvků v močových kamenech může přinést informaci o jejich vzniku. Pro tyto účely jsou požívány analytické metody umožňující chemické mapování prvků jako spektroskopie laserem buzeného plazmatu (LIBS) a laserová ablace ve spojení s hmotnostní spektrometrií indukčně vázaného plazmatu (LA-ICP-MS). Obě tyto metody jsou vhodné pro mapování jak matričních, tak minoritních a stopových prvků. Mohou být demonstrovány korelace mezi jednotlivými prvky, případně mohou být výsledky dané do souvislosti se strukturou určenou pomocí počítačové mikrotomografie (mikro CT). Močové kameny byly rozříznuty, zality do epoxidové pryskyřice a řezy byly následně zaleštěny. V závislosti na velikosti vzorku byly buďto celé řezy, nebo jejich části podrobeny mapování laserovými technikami.

Links

• GA203/09/1394, research and development project: Name: Chemická, mineralogická a statistická analýza souboru močových konkrementů pacientů ostravské aglomerace

Investor: Czech Science Foundation, Chemical, mineralogical and statistical analysis of set of urinary stones of patients of Ostrava city aglomeration

• ME08002, research and development project: Name: Použití spektroskopie laserem buzeného plazmatu (LIBS) a laserové ablace ve spojení s ICP-OES/MS spektroskopií pro chemické mapování biominerálů

Investor: Ministry of Education, Youth and Sports of the CR, Utilization of the laser induced breakdown spectroscopy (LIBS) and laser ablation ICP-OES/MS spectroscopy for chemical mapping of biominerals, Research and Development Programme KONTAKT (ME)