期刊
NUTRIENTS
卷 14, 期 17, 页码 -出版社
MDPI
DOI: 10.3390/nu14173530
关键词
cloud point extraction; trace selenium; spectrometric methods; beverages; food samples; water samples
资金
- Scientific Grant Agency of the Ministry of Education, Science, Research and Sport of the Slovak Republic
- Slovak Academy of Sciences [VEGA 1/0135/22]
This article introduces cloud point extraction, a technique often used in conjunction with spectrometric analysis to efficiently separate and quantify selenium in food. It is of particular importance for understanding selenium levels in different food products.
Selenium is a trace element essential for the proper functioning of human body. Since it can only be obtained through our diet, knowing its concentrations in different food products is of particular importance. The measurement of selenium content in complex food matrices has traditionally been a challenge due to the very low concentrations involved. Some of the difficulties may arise from the abundance of various compounds, which are additionally present in examined material at different concentration levels. The solution to this problem is the efficient separation/preconcentration of selenium from the analyzed matrix, followed by its reliable quantification. This review offers an insight into cloud point extraction, a separation technique that is often used in conjunction with spectrometric analysis. The method allows for collecting information on selenium levels in waters of different complexity (drinking water, river and lake waters), beverages (wine, juices), and a broad range of food (cereals, legumes, fresh fruits and vegetables, tea, mushrooms, nuts, etc.).
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