Laser-Induced Breakdown Spectroscopy of Molten Metals: Influence of Sample Temperature

VACULOVIČ, Tomáš, Zbyněk ZVĚŘINA, Vítězslav OTRUBA and Viktor KANICKÝ. Laser-Induced Breakdown Spectroscopy of Molten Metals: Influence of Sample Temperature. Zeitschrift fur Naturforschung A. 2011, 66a, 10/11, p. 643-648. ISSN 0932-0784.

Basic information

• Original name: Laser-Induced Breakdown Spectroscopy of Molten Metals: Influence of Sample Temperature
• Authors: VACULOVIČ, Tomáš (203 Czech Republic, guarantor, belonging to the institution), Zbyněk ZVĚŘINA (203 Czech Republic, belonging to the institution), Vítězslav OTRUBA (203 Czech Republic, belonging to the institution) and Viktor KANICKÝ (203 Czech Republic, belonging to the institution).
• Edition: Zeitschrift fur Naturforschung A, 2011, 0932-0784.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10406 Analytical chemistry
• Country of publisher: Germany
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 0.940
• RIV identification code: RIV/00216224:14310/11:00050464
• Organization unit: Faculty of Science
• UT WoS: 000299194500010
• Keywords in English: Laser-Induced Breakdown Spectroscopy; Molten Metals; Sample Temperature
• Tags: AKR, rivok

Abstract

The aim of this work was to determine the influence of sample temperature on the laser-induced microplasma (LIP) emission intensity and to ascertain the possibility of laser-induced breakdown spectroscopy (LIBS) utilization for the monitoring of impurities in molten metals. Pure low-melting metals (bismuth, gallium, indium, lead, tin, and zinc) were used for all experiments. It was found out that the LIP emission increases linearly with increasing temperature within the range 25C to 70C above the melting point of the metal. The slope of this change in LIP intensity is related to the transition probability of a given emission line. If the LIP intensity of given solid and molten metals are compared, then their relative change is related to the coefficient of thermal conductivity. The LIBS shows possibilities for the identification of impurities in molten metals. Amounts of impurities in the order of tens mg=kg can be identified.

Links

• GP203/08/P430, research and development project: Name: Spektrometrie laserem indukovaného plazmatu (LIBS) kapalin

Investor: Czech Science Foundation, Laser induced breakdown spectrometry of liquids