Theoretical estimation of pyrolysis temperatures in electrothermal sample atomization

A method using was proposed for the determination of element speciation at the step of pyrolysis and theoretical estimation of pyrolysis temperature corresponding to the given analyte losses. The experimental and theoretical pyrolysis temperatures for compounds of 43, including those of B, Be, Cd, Cs, In, Li, Mo, Nb, Ru, Sr, Te, and V, elements were compared to take into account the loss kinetics. It was found that at various levels of analyte losses (0.1, 1, and 10 %), these temperatures exhibit linear relationship with a correlation coefficient of no less than 0.66. The developed approach provides the prediction of pyrolysis temperatures in electrochemical atomization and can used for the selection of a type of chemical modifier