THE HEAVY METAL DETECTION IN THE ALBANIAN SALVIA OFFICINALIS, WITH ICP-MS AND UV-VIS SPECTROPHOTOMETER
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Jona Keri, Lindita Vrushi
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This work aims to study the impact of the method of extracting the essential oil of the sage plant. The identification of heavy metals both in plants and in oil, but in oil extracted with 2 methods, with the classic one using Clevenger's apparatus and with supercritical extraction using CO2 as a solvent. The results are different.
The results clearly show how the extraction and analysis methods affect the values obtained. Lead was found to be the most abundant metal in the Salvia Officinalis oil, with a concentration of 0.028 parts per million, followed by mercury at 0.015 ppm, according to an analysis utilising the Clevenger equipment and ICP-MS.
After CO2 extraction, the extract was diluted 1:2 with n-hexane, and ISO 11212 Spectrophotometry was used to check for the presence of heavy metals. Lead, which was detected at the highest concentration (0.22 ppm), was followed by cadmium (0.12 ppm).
All of the values obtained meet the WHO requirements for fruits and vegetables.
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Authors
Jona Keri, Lindita Vrushi
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