Laser diode thermal vaporization ICP MS

• Authors: FOLTYNOVÁ Pavla; KANICKÝ Viktor; PREISLER Jan
• Year of publication: 2011
• Type: Conference abstract
• MU Faculty or unit: Central European Institute of Technology
• Description: The new sample introduction method LDTV ICP MS does not require an expensive high-energy pulse laser, because the technique employs a low-cost NIR diode laser which makes it a promising alternative to nebulizers. Defined submicroliter volumes of samples are deposited on a suitable sample carrier with an absorber. 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 quantitative analysis of metals. The advantages of LDTV are easy sample archiving, low consumption of sample solution, transportation and simplicity of sample preparation.

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