Research Keyword: ICP-OES

Evaluation of the Elemental Composition of Dietary Supplements Containing Iron Available on the Polish Market Using ICP-OES, FAAS and CVAAS Techniques

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Researchers tested 24 iron-containing dietary supplements sold in Poland to check if they contained the amounts of iron and other minerals stated on their labels. They found that most supplements had more iron than claimed, and five exceeded safe levels. The study highlights concerns about inconsistent quality and the need for better oversight of supplement manufacturing to protect consumers, especially pregnant women.

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Silver Chloride Precipitation-limiting Factor for Accurate Silver Determination in Ag-accumulating Mushrooms After Nitric Acid Digestion

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This research addresses a critical problem in measuring silver content in certain mushrooms, particularly silver-accumulating Amanita species. Scientists discovered that standard laboratory digestion procedures using nitric acid can cause silver to precipitate as silver chloride, making it invisible to measurement instruments and leading to false low results. The study demonstrates that neutron activation analysis is more accurate for measuring silver in these mushrooms, or alternatively, specialized multi-step digestion procedures can dissolve the precipitated silver chloride to obtain accurate measurements.

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