2011
Laser diode thermal vaporization inductively-coupled plasma mass spectrometry
FOLTYNOVÁ, Pavla, Viktor KANICKÝ a Jan PREISLERZákladní údaje
Originální název
Laser diode thermal vaporization inductively-coupled plasma mass spectrometry
Název česky
Tepelné odpařování pomocí diodových laserů pro hmotnostní spektrometrii indukčně vázaného plazmatu
Autoři
FOLTYNOVÁ, Pavla (203 Česká republika, domácí), Viktor KANICKÝ (203 Česká republika, domácí) a Jan PREISLER (203 Česká republika, garant, domácí)
Vydání
Colloquium Spectroscopicum Internationale – CSI XXXVII, 2011
Další údaje
Jazyk
angličtina
Typ výsledku
Konferenční abstrakt
Obor
10406 Analytical chemistry
Stát vydavatele
Brazílie
Utajení
není předmětem státního či obchodního tajemství
Kód RIV
RIV/00216224:14740/11:00050035
Organizační jednotka
Středoevropský technologický institut
ISBN
978-85-8006-046-1
Klíčová slova anglicky
sample introduction; inductively coupled plasma mass spectrometry; diode laser
Štítky
Změněno: 3. 4. 2012 13:46, Mgr. Nikola Kostlánová, Ph.D.
V originále
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.
Česky
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.
Návaznosti
| ED1.1.00/02.0068, projekt VaV |
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| GA203/09/1025, projekt VaV |
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| MSM0021622411, záměr |
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| MSM0021622412, záměr |
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| MSM0021622415, záměr |
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