Ultrasound-assisted extraction technique for establishing selenium contents in breast cancer biopsies by Zeeman-electrothermal atomic absorption spectrometry using multi-injection

A fast ultrasound-assisted extraction procedure for trace elements determination in hair samples by ICP-MS for forensic analysis

“…Controlling these variables in order to obtain a quantitative extraction of the analyte into the aqueous phase can result in an advantageous procedure to avoid the problems related with sample digestion procedures. In general, this sample preparation procedure has been successfully applied before trace elements determination by GF AAS or ICP-OES [8][9][10][11][12][13][14][15][16]. However, only few applications of ultrasound-assisted extraction are found in the literature with ICP-MS determination [20,21].…”

“…Based on this, some authors have reported that several analytes were totally or partially extracted into the liquid phase when ground solid samples were sonicated before being sampled [8][9][10][11][12][13][14][15][16][17]. This process increases the sample throughput and is very simple.…”