Optimization of sample injection in TS-FF-AAS for determination of trace elements

作者: G. Carrone , E. Morzan , R. Candal , M. Tudino

DOI: 10.1016/J.MICROC.2020.105608

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摘要: Abstract In this work we present a proof of concept for the optimization analytical performance in ThermoSpray Flame Furnace Atomic Absorption Spectrometry (TS-FFAAS) by using different systems sample injection. The influence operational variables was studied with emphasis on characteristics ceramic capillary employed introduction. classic single hole compared to capillaries number inner holes (one, four and six) spatial distribution. signal double simultaneous injection applied zones atomization furnace also evaluated. Determination elements temperature (Ag, Cd Se) done, results shown an figures merit respect TS-FF-AAS conventional assembly increased element volatility. Applications Multi Injection (MI-TS-FF-AAS) evaluated determination “yerba mate” samples; comparison obtained proposed technique other validated ones showed good agreement, reduction amount achieved multi-injection alternative. A discussion focused importance efficient introduction attainable TS-FFAAS applications is provided.

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