Diode laser thermal vaporization inductively coupled plasma
mass spectrometry for determination of trace elements in
microsamples

a 2012

Diode laser thermal vaporization inductively coupled plasma mass spectrometry for determination of trace elements in microsamples

FOLTYNOVÁ, Pavla; Viktor KANICKÝ a Jan PREISLER

Základní údaje

Originální název

Diode laser thermal vaporization inductively coupled plasma mass spectrometry for determination of trace elements in microsamples

Autoři

FOLTYNOVÁ, Pavla (203 Česká republika, domácí); Viktor KANICKÝ (203 Česká republika, domácí) a Jan PREISLER (203 Česká republika, garant, domácí)

Vydání

Konference ČSHS, 2012

Další údaje

Jazyk

angličtina

Typ výsledku

Konferenční abstrakt

Obor

10406 Analytical chemistry

Stát vydavatele

Česká republika

Utajení

není předmětem státního či obchodního tajemství

Kód RIV

RIV/00216224:14740/12:00057898

Organizační jednotka

Středoevropský technologický institut

ISBN

978-80-905045-1-6

Klíčová slova anglicky

diode laser; ICP MS

Změněno: 6. 12. 2012 10:09, Mgr. Pavla Foltynová, Ph.D.

Anotace

V originále

A new method for determination of trace elements in submicroliter sample volumes using diode laser thermal vaporization inductively coupled mass spectrometry (DLTV ICP MS) is presented.(1) Common laser-based sample introduction methods use an expensive high-energy pulse laser, whereas DLTV employs a low-cost near infrared continuous-wave diode laser. The diode laser energy is sufficient to induce pyrolysis of the preprinted paper with depositing micro-volume samples and the generated aerosol is carried out into the ICP MS and tested. 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. The technique was applied to determination of lead in whole blood and tin in canned food without any sample treatment. Selection of optimal conditions, experimental arrangement, raster, scan speed etc. will be discussed. Moreover, a simple laboratory-built tubular laser ablation chamber equipped with a more powerful NIR diode laser was constructed. Prototype chamber placed on a common syringe pump produced rapid line scans across samples (~ 8 s/sample) and the least dead volume minimizing aerosol diffusion and providing very fast wash-out. Analysis of Pb in blood samples using a prearranged calibration set on preprinted filter paper in the laboratory-built chamber will be demonstrated. Combination of low-cost instrumentation and a common filter paper with simple sample preparation provides alternatives to conventional analysis of metals in liquid samples. The advantages of LDTV are also very low consumption of sample solution, easy sample archiving and transportation and option of prearranged multi-elemental calibration sets.

Návaznosti

ED1.1.00/02.0068, projekt VaV

Název: CEITEC - central european institute of technology

GAP206/12/0538, projekt VaV

Název: Nové strategie úpravy vzorků pro desorpční hmotnostní spektrometrii

Investor: Grantová agentura ČR, Nové strategie úpravy vzorků pro desorpční hmotnostní spektrometrii

Citovat

FOLTYNOVÁ, Pavla; Viktor KANICKÝ a Jan PREISLER. Diode laser thermal vaporization inductively coupled plasma mass spectrometry for determination of trace elements in microsamples. In Konference ČSHS. 2012. ISBN 978-80-905045-1-6.

@proceedings{1076299,
   author = {Foltynová, Pavla and Kanický, Viktor and Preisler, Jan},
   booktitle = {Konference ČSHS},
   keywords = {diode laser; ICP MS},
   language = {eng},
   isbn = {978-80-905045-1-6},
   title = {Diode laser thermal vaporization inductively coupled plasma mass spectrometry for determination of trace elements in microsamples},
   year = {2012}
}

TY  - CONF
ID  - 1076299
AU  - Foltynová, Pavla - Kanický, Viktor - Preisler, Jan
PY  - 2012
TI  - Diode laser thermal vaporization inductively coupled plasma mass spectrometry for determination of trace elements in microsamples
SN  - 9788090504516
KW  - diode laser
KW  - ICP MS
N2  - A new method for determination of trace elements in submicroliter sample volumes using diode laser thermal vaporization inductively coupled mass spectrometry (DLTV ICP MS) is presented.(1) Common laser-based sample introduction methods use an expensive high-energy pulse laser, whereas DLTV employs a low-cost near infrared continuous-wave diode laser. The diode laser energy is sufficient to induce pyrolysis of the preprinted paper with depositing micro-volume samples and the generated aerosol is carried out into the ICP MS and tested. 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. The technique was applied to determination of lead in whole blood and tin in canned food without any sample treatment. Selection of optimal conditions, experimental arrangement, raster, scan speed etc. will be discussed. Moreover, a simple laboratory-built tubular laser ablation chamber equipped with a more powerful NIR diode laser was constructed. Prototype chamber placed on a common syringe pump produced rapid line scans across samples (~ 8 s/sample) and the least dead volume minimizing aerosol diffusion and providing very fast wash-out. Analysis of Pb in blood samples using a prearranged calibration set on preprinted filter paper in the laboratory-built chamber will be demonstrated. Combination of low-cost instrumentation and a common filter paper with simple sample preparation provides alternatives to conventional analysis of metals in liquid samples. The advantages of LDTV are also very low consumption of sample solution, easy sample archiving and transportation and option of prearranged multi-elemental calibration sets.
ER  -

Přehled o publikaci