Related Experiment Video
Updated: May 8, 2026

Preparation of Food Samples Using Homogenization and Microwave-Assisted Wet Acid Digestion for Multi-Element Determination with ICP-MS
Published on: December 22, 2023
Evaluation of a simple and fast method for the multi-elemental analysis in commercial fruit juice samples using
Anna Szymczycha-Madeja1, Maja Welna
1Wroclaw University of Technology, Chemistry Department, Analytical Chemistry Division, Wybrzeże Wyspiańskiego 27, 50-370 Wroclaw, Poland. anna.szymczycha@pwr.wroc.pl
Abstract:
Four sample preparation procedures: wet digestion with HNO3/H2O2 (P1), 1:1 dilution with 2% HNO3 and latter centrifugation (P2) or filtration (P3) and direct analysis after centrifugation (P4) for the determination of total Al, Ba, Ca, Cd, Cr, Cu, Fe, Mg, Mn, Ni, P, Pb, Sr and Zn in fruit juices by inductively coupled plasma atomic emission spectrometry (ICP OES) were compared. Precision (RSD), accuracy (by standard addition or recovery) and limit of detection (LOD) were used to evaluate characteristics of the procedures. Dilution with 2% HNO3 and centrifugation (P2) provided the best results, i.e. LODs between 0.11 and 108 ng mL(-1), RSDs of 1% and 5% and accuracy better than 5%. This procedure was also simple, fast and could be applied for routine analysis. Element concentrations agreed with those after wet digestion, therefore the procedure can be alternatively used instead of conventional sample treatment. Several commercial juices were analysed with this procedure.
Related Concept Videos
Atomic Emission Spectroscopy: Overview
Atomic Emission Spectroscopy: Lab
Atomic Emission Spectroscopy: Instrumentation
Atomic Absorption Spectroscopy: Atomization Methods
Atomic Absorption Spectroscopy: Lab
Solutions containing organic solvents, such as low-molecular-mass alcohols, esters, or ketones, enhance absorbances by increasing nebulizer...
Atomic Absorption Spectroscopy: Overview
When irradiated by EMR of a particular wavelength, these...

