Determination of lead in human placenta tissue employing slurry sampling and detection by electrothermal atomic absorption spectrometry

Abstract

A new analytical procedure was developed for the determination of lead in human placental tissue by direct ultrasonic slurry sampling combined with electrothermal atomic absorption spectrometry (SS-ET AAS). Samples of...

Green direct ultrasonic slurry sampling and electrothermal atomic absorption spectrometry method for metal analysis of solid plastics samples

“…21 The SS technique is "greener" than solid sample decomposition techniques because it affords several advantages, such as reducing analysis time, reducing or eliminating sample treatment steps, reducing the volume of solvents used, improving the accuracy and sensitivity of detection, or even reducing and eliminating potential sample contamination in the course of the sample treatment. 22,23 This work sought to describe the development of a new "green" slurry sampling technique with the electrothermal atomic absorption spectrometry (SS-ETAAS) method for the metal analysis of selected solid plastics samples. The main advantage of the "green" analytical method is that the automated direct ultrasonic SS technique eliminates problems associated with the stability and homogeneity of suspensions, and at the same time, only ultrapure H 2 O was used as a liquid medium in most of the analysed samples without the addition of other inorganic or organic modiers.…”

“…21 The SS technique is “greener” than solid sample decomposition techniques because it affords several advantages, such as reducing analysis time, reducing or eliminating sample treatment steps, reducing the volume of solvents used, improving the accuracy and sensitivity of detection, or even reducing and eliminating potential sample contamination in the course of the sample treatment. 22,23…”