Discussion of parameters associated with the ultrasonic solid-liquid extraction for elemental analysis (total content) by electrothermal atomic absorption spectrometry. An overview.

摘要: Ultrasonic solid-liquid extraction (USLE) of trace metals from biological and environmental samples its subsequent quantification by electrothermal atomic absorption spectrometry (ET-AAS) is nowadays an emerging methodology in the analytical laboratory. However, this far maturity as can be readily demonstrated controversial data reported different workers. In light our own experience a survey published data, general approach for USLE-ET-AAS discussed, taking into account variables which affect ultrasonic extraction, namely, device chosen (e.g. bath or probe), particle size, acid concentration, sonication time amplitude, sample mass analyte-matrix binding.