Publikace detail

Multi-element analysis of fly ash samples by oTOF-ICP-MS after microwave assisted extraction with NH4F

Autoři: Šídová Tereza | Husáková Lenka | Urbanová Iva

Rok: 2015

Druh publikace: ostatní - článek ve sborníku

Název zdroje: YISAC 2015: 22nd Young Investigators Seminar on Analytical Chemistry

Název nakladatele: University of Łódź

Místo vydání: Łódź

Strana od-do: 44

Tituly:

Jazyk	Název	Abstrakt	Klíčová slova
eng	Multi-element analysis of fly ash samples by oTOF-ICP-MS after microwave assisted extraction with NH4F	In this study, precise, accurate, and time efficient method for multi-element analysis of fly ash by inductively coupled plasma orthogonal acceleration time of flight mass spectrometry (oTOF-ICP-MS) after closed microwave-assisted extraction method (MAE) employing ammonium fluoride as the extractant has been developed. The proposed approach eliminates the use of HCl, HClO4 or HF, which are commonly used for decomposition of these samples [1, 2] and thus prevents the formation of isobaric interferences from Cl-based polyatomic species hampering the determination of elements such as Ni, As, or Se if instrumentation with insufficient resolving power is used, and also other drawbacks associated with these reagents. Employment of fractional factorial design resulted in obtaining the optimal extraction conditions under which accurate results were achieved for Li, Be, As, Se, Rb, Sb, Cs, W, and U. The trueness and precision of the method were confirmed by analysis of certified reference materials SRM 1633b Coal fly ash (National Institute of Standards and Technology, NIST, USA) and CTA-FFA-1 Fine fly ash (Institute of Nuclear Chemistry and Technology, Poland).	multi-element analysis; fly ash; inductively coupled plasma mass spectrometry; oaTOF-ICP-MS; microwave-assisted extraction; fractional faktoriál design

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