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Assessing Mineral Availability in Fish Feeds using Complementary Methods Demonstrated with the Example of Zinc in Atlantic Salmon
Published on: October 29, 2021
[Determination of 27 microelements in 11 shellfishes]
Jin-Zhe He1, Pei-Cheng Zhao, Kai Yang
1College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310014, China.
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|November 23, 2006
Summary
This study analyzed 27 microelements in shellfish using ICP-AES, finding over 20 elements present. Arsenic (As) and lead (Pb) were identified as significant pollutants in the analyzed samples.
Area of Science:
- Analytical Chemistry
- Environmental Science
- Marine Biology
Context:
- Shellfish are a crucial part of the marine food web and human diet.
- Understanding microelement composition and pollutant levels in shellfish is vital for ecological and human health assessments.
- Previous analytical methods may have limitations in comprehensively determining diverse microelements.
Purpose:
- To determine the concentration of 27 microelements in shellfish samples.
- To evaluate the efficacy of Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) for microelement analysis in complex matrices.
- To identify major pollutant elements in shellfish, distinguishing between freshwater and seawater sources.
Summary:
- Shellfish samples were prepared using microwave digestion.
- Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) was employed to quantify 27 microelements (e.g., Ca, Zn, Fe, As, Pb).
- Results indicated shellfish contain over 20 microelements, with higher calcium (Ca) in freshwater samples and elevated levels of arsenic (As) and lead (Pb) as primary pollutants.
Impact:
- Demonstrates ICP-AES as a powerful technique for comprehensive microelement profiling in biological samples.
- Provides essential data on the nutritional and contaminant profile of shellfish.
- Highlights the presence of specific heavy metal pollutants (As, Pb) in shellfish, informing environmental monitoring and food safety regulations.
