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Related Experiment Videos

Lead, fluoride, and other elements in bonemeal supplements.

S G Capar, J H Gould

    Journal - Association of Official Analytical Chemists
    |September 1, 1979
    PubMed
    Summary

    This study analyzed 20 bonemeal supplements for heavy metals and fluorine. Lead and fluorine were found in significant amounts, while cadmium was detected in only one sample.

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    Area of Science:

    • Environmental Science
    • Analytical Chemistry
    • Food Science

    Background:

    • Bonemeal supplements are used for calcium and phosphorus, but their elemental composition requires thorough analysis.
    • Assessing heavy metal and fluorine content is crucial for consumer safety and product quality.

    Purpose of the Study:

    • To determine the concentration of various elements, including toxic heavy metals and fluorine, in commercial bonemeal supplements.
    • To evaluate the safety and quality of bonemeal products available on the market.

    Main Methods:

    • Elemental analysis of 20 bonemeal samples using nitric and perchloric acid mineralization.
    • Determination of lead (Pb) and cadmium (Cd) by differential pulse anodic stripping voltammetry.
    • Fluorine (F) measurement using an ion-selective electrode and other elements by inductively coupled argon plasma spectroscopy.

    Main Results:

    • Lead (Pb) concentrations ranged from 1.5-8.7 µg/g.
    • Cadmium (Cd) was found in only one sample at 2.5 µg/g; others were below 0.05 µg/g.
    • Fluorine (F) levels varied from 261-921 µg/g.

    Conclusions:

    • Bonemeal supplements can contain varying levels of essential and toxic elements.
    • Monitoring heavy metals and fluorine in dietary supplements is important for public health.
    • Inductively coupled argon plasma spectroscopy and other methods provide reliable elemental analysis.

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