scholarly journals Optimization of the sample preparation method for determination of multi-elemental composition in fruit samples by ICP-MS analysis

2021 ◽  
Vol 18 ◽  
pp. 100292
Author(s):  
Doris Potočnik ◽  
Marta Jagodic Hudobivnik ◽  
Darja Mazej ◽  
Nives Ogrinc
Talanta ◽  
2017 ◽  
Vol 174 ◽  
pp. 394-400 ◽  
Author(s):  
Carla Andrade Hartwig ◽  
Rodrigo Mendes Pereira ◽  
Diogo La Rosa Novo ◽  
Dirce Taina Teixeira Oliveira ◽  
Marcia Foster Mesko

2015 ◽  
Vol 30 (8) ◽  
pp. 1822-1827 ◽  
Author(s):  
Leticia S. F. Pereira ◽  
Angelica C. Frohlich ◽  
Fabio A. Duarte ◽  
Robert A. Burrow ◽  
Edson I. Muller ◽  
...  

A sample preparation method for pitch digestion using microwave-induced combustion for further determination of halogens by ICP-MS and sulfur by ICP-OES.


2021 ◽  
Vol 171 ◽  
pp. 106781 ◽  
Author(s):  
Caroline M. Senger ◽  
Kellen F. Anschau ◽  
Luiza Baumann ◽  
Aline L.H. Muller ◽  
Paola A. Mello ◽  
...  

2010 ◽  
Vol 75 (6) ◽  
pp. 803-812 ◽  
Author(s):  
Snezana Kravic ◽  
Zvonimir Suturovic ◽  
Jaroslava Svarc-Gajic ◽  
Zorica Stojanovic ◽  
Mira Pucarevic

A sample preparation method based on the simultaneous microwave-assisted extraction-esterification (SMAEE) was developed for the determination of the fatty acid composition of foodstuffs by gas chromatography-mass spectrometry. The proposed sample preparation method was validated by comparison with the reference Soxhlet extraction method followed by derivatisation by ester formation and the same determination step. The fatty acid compositions and the extraction efficiencies obtained using the proposed SMAEE method and the reference method were statistically similar. The results showed that compared to the conventional method, the SMAEE method offered the advantages of short sample preparation time, low consumption of expensive organic solvents and lower energy consumption. This good agreement between results provided by both the SMAEE and the reference method demonstrates the usefulness of the former as a routine method for the treatment of food samples prior to trans fatty analysis.


2004 ◽  
Vol 17 (6) ◽  
pp. 749-765 ◽  
Author(s):  
M. Ryynänen ◽  
A.-M. Lampi ◽  
P. Salo-Väänänen ◽  
V. Ollilainen ◽  
V. Piironen

2019 ◽  
Vol 85 (4) ◽  
pp. 110-113
Author(s):  
Olexandr Ponomarenko ◽  
Anatolyi Samchuk ◽  
Kateryna Vovk ◽  
Igor Shvaika ◽  
Ganna Grodzinskaya

The analytical technologies of sample preparation of rocks and mushrooms using the microwave field for the determination of germanium by the method of mass spectrometry with inductively coupled plasma (ICP-MS analysis) have been developed. Germanium is a rare element. Germanium is homology of silicon and carbon. To date, the definition of low content of germanium in geological objects is a rather complex analytical task, which requires its concentration - extraction, co-precipitation, ion exchange. At present, the harmonious combination of the method of natural objects decomposition in the microwave field and germanium determination using ICP-MS analysis is particularly promising. Sample preparation of silicate rocks for ICP-MS determination of germanium was carried out by decomposition in a mixture of hydrofluoric, phosphate and nitric acids (5: 5: 2) in a microwave oven program at 240°C for 30 min. Sample preparation of mushrooms for ICP-MS germanium determination was carried out according to the following scheme. Initially, the dried sample was sealed in the presence of CaO, after dissolving it in a mixture of HNO3+HF+H3PO4 (6:6:1). Ge solution was extracted by Nazarenko V.A. extraction method. The developed analytical schemes have made it possible to significantly reduce the duration and labor intensity of sample preparation. The obtained solutions were analyzed using an inductively coupled plasma mass spectrometer. The developed method for determining germanium by ICP-MS analysis has been successfully tested on standard rock samples. The obtained results are in accordance with the accepted attribute, the relative standard deviation Sr ranges from 0.7-0.9. The data on the content and distribution of germanium in the Boletales fungi are obtained. They indicate wild mushrooms contain high levels of germanium, especially Boletus and Mushroom biospores. These studies are necessary because the essential properties of germanium and its compounds attract special attention of scientists today. Complementary Ge compounds which have hypotensive, bactericidal, antiviral and antitumor effects have already been synthesized.


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