Laser diode thermal vaporization inductively-coupled plasma mass spectrometry

FOLTYNOVÁ, Pavla, Viktor KANICKÝ and Jan PREISLER. Laser diode thermal vaporization inductively-coupled plasma mass spectrometry. In Colloquium Spectroscopicum Internationale – CSI XXXVII. 2011. ISBN 978-85-8006-046-1.

Basic information

• Original name: Laser diode thermal vaporization inductively-coupled plasma mass spectrometry
• Name in Czech: Tepelné odpařování pomocí diodových laserů pro hmotnostní spektrometrii indukčně vázaného plazmatu
• Authors: FOLTYNOVÁ, Pavla (203 Czech Republic, belonging to the institution), Viktor KANICKÝ (203 Czech Republic, belonging to the institution) and Jan PREISLER (203 Czech Republic, guarantor, belonging to the institution).
• Edition: Colloquium Spectroscopicum Internationale – CSI XXXVII, 2011.

Other information

• Original language: English
• Type of outcome: Conference abstract
• Field of Study: 10406 Analytical chemistry
• Country of publisher: Brazil
• Confidentiality degree: is not subject to a state or trade secret
• RIV identification code: RIV/00216224:14740/11:00050035
• Organization unit: Central European Institute of Technology
• ISBN: 978-85-8006-046-1
• Keywords in English: sample introduction; inductively coupled plasma mass spectrometry; diode laser
• Tags: rivok

Abstract

A new approach of sample introduction to inductively coupled plasma mass spectrometry (ICP-MS), laser diode thermal vaporization (LDTV), is presented. In contrast to existing sample introduction systems based on laser ablation, the technique employs a low-cost NIR diode laser rather than an expensive high-energy pulse laser. Defined submicroliter volumes of samples are deposited on a suitable sample carrier with an absorber, such as common office paper with commercial printer black ink. The diode laser energy is sufficient to induce burning and/or pyrolysis of the carrier substrate sample which leads to aerosol generation. Selection of optimal conditions, e.g., experimental arrangement, raster, scan speed, additives etc. will be discussed. The limits of detection of Co, Ni, Zn, Mo, Cd, Sn and Pb deposited on the preprinted paper were found to be in the range of 4 – 300 pg. Applicability was demonstrated on determination of lead in whole blood and tin in canned food. Using a multielemental calibration set prearranged on the carrier, LDTV ICP MS provided rapid and reproducible (10%) quantitative analysis of metals. The advantages of LDTV are also very low consumption of sample solution, easy sample archiving and transportation and variability and simplicity of sample preparation.

Abstract (in Czech)

A new approach of sample introduction to inductively coupled plasma mass spectrometry (ICP-MS), laser diode thermal vaporization (LDTV), is presented. In contrast to existing sample introduction systems based on laser ablation, the technique employs a low-cost NIR diode laser rather than an expensive high-energy pulse laser. Defined submicroliter volumes of samples are deposited on a suitable sample carrier with an absorber, such as common office paper with commercial printer black ink. The diode laser energy is sufficient to induce burning and/or pyrolysis of the carrier substrate sample which leads to aerosol generation. Selection of optimal conditions, e.g., experimental arrangement, raster, scan speed, additives etc. will be discussed. The limits of detection of Co, Ni, Zn, Mo, Cd, Sn and Pb deposited on the preprinted paper were found to be in the range of 4 – 300 pg. Applicability was demonstrated on determination of lead in whole blood and tin in canned food. Using a multielemental calibration set prearranged on the carrier, LDTV ICP MS provided rapid and reproducible (10%) quantitative analysis of metals. The advantages of LDTV are also very low consumption of sample solution, easy sample archiving and transportation and variability and simplicity of sample preparation.

Links

• ED1.1.00/02.0068, research and development project: Name: CEITEC - central european institute of technology
• GA203/09/1025, research and development project: Name: Multidetekční platforma pro mikrokolonové separace proteinů a peptidů

Investor: Czech Science Foundation, Multidetection platform for microcolumn separation of proteins and peptides

• MSM0021622411, plan (intention): Name: Studium a aplikace plazmochemických reakcí v neizotermickém nízkoteplotním plazmatu a jeho interakcí s povrchem pevných látek

Investor: Ministry of Education, Youth and Sports of the CR, Study and application of plasma chemical reactions in non-isothermic low temperature plasma and its interaction with solid surface

• MSM0021622412, plan (intention): Name: Interakce mezi chemickými látkami, prostředím a biologickými systémy a jejich důsledky na globální, regionální a lokální úrovni (INCHEMBIOL) (Acronym: INCHEMBIOL)

Investor: Ministry of Education, Youth and Sports of the CR, Interactions among the chemicals, environment and biological systems and their consequences on the global, regional and local scales (INCHEMBIOL)

• MSM0021622415, plan (intention): Name: Molekulární podstata buněčných a tkáňových regulací

Investor: Ministry of Education, Youth and Sports of the CR, Molecular basis of cell and tissue regulations