Ultra-fast microwave-assisted digestion in choline chloride–oxalic acid deep eutectic solvent for determining Cu, Fe, Ni and Zn in marine biological samples

Abstract

This is the first application that incorporates microwave heating with deep eutectic solvent (DES) for dissolution of biological samples.

A rapid microwave-assisted acid extraction method based on the use of diluted HNO3-H2O2followed by ICP-MS analysis for simultaneous determination of trace elements in coal samples

“…Hence 0.1 g was preferred to be the optimum coal amount in proposed MW-AAE procedure due to highest recoveries (100%) achieved. Similar observations were also reported by Krishna et al [39] and Ghanemi et al [40].…”

Innovative Extraction Techniques Using Deep Eutectic Solvents and Analytical Methods for the Isolation and Characterization of Natural Bioactive Compounds from Plant Material

“…The choice of the appropriate solvent is crucial for maximum process utilization, since many solvents, especially non-polar ones (toluene, hexane and dichloromethane), are transparent to microwave energy [135]. On the other hand, polar solvents such as MeOH, EtOH and ethyl acetate absorb the microwave energy, convert it into heat and thus cause the cell wall to break, and the analytes are transferred into the solvent matrix [136,137]. Taking into account that DES/NADES can efficiently absorb microwave energy [138], it is a rather interesting approach to use DES/NADES as solvent or co-solvent in the MAE for the effective extraction of different classes of bioactive compounds.…”

Atomic spectrometry update: review of advances in the analysis of clinical and biological materials, foods and beverages

“…Two groups of researchers reported improvements of reference methods in this area. Polyatomic interferences on the measurements of the 42 Ca : 44 Ca and 24 Mg : 26 Mg were substantially resolved at medium resolution, whereas residual interferences on the ratio 39 K : 41 K could not be eliminated completely at levels below 100 ng g À1 even using the high resolution mode. Measurements were carried out by SF-ICP-MS, using 44 Ca, 26 Mg and 41 K for ID.…”

“…Ghanemi et al 44 proposed for the rst time the microwave-assisted digestion of sh muscle samples with the DES choline chloride-oxalic acid. Ghanemi et al 44 proposed for the rst time the microwave-assisted digestion of sh muscle samples with the DES choline chloride-oxalic acid.…”