AI Article Synopsis
- A study evaluated the use of inductively coupled plasma-mass spectrometry (ICP-MS) for measuring metals in composite diets, focusing on elements like aluminum, lead, and zinc.
- Atmospheric pressure microwave digestion was employed to prepare the samples before analysis, achieving good recovery rates for certified elements (92-119%) and fortified samples (75-129%).
- The study found limits of detection ranging from 1 to 1700 ng/g, with the ICP-MS technique proving to be precise and accurate for the analyzed metals in the diet samples.
Article Abstract
A study was conducted to evaluate the applicability of inductively coupled plasma-mass spectrometry (ICP-MS) techniques for determination of metals in composite diets. Aluminum, cadmium, chromium, copper, lead, manganese, nickel, vanadium, and zinc were determined by this method. Atmospheric pressure microwave digestion was used to solubilize analytes in homogenized composite diet samples, and this procedure was followed by ICP-MS analysis. Recovery of certified elements from standard reference materials ranged from 92 to 119% with relative standard deviations (RSDs) of 0.4-1.9%. Recovery of elements from fortified composite diet samples ranged from 75 to 129% with RSDs of 0-11.3%. Limits of detection ranged from 1 to 1700 ng/g; high values were due to significant amounts of certain elements naturally present in composite diets. Results of this study demonstrate that low-resolution quadrupole-based ICP-MS provides precise and accurate measurements of the elements tested in composite diet samples.
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