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Which instrument used to measure metal ions in serum sample? 

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This suggests that serum metal concentrations are not useful as a surrogate measure of systemic metal ion exposure.
It was also demonstrated that the method can be used for the determination of free metal ions and labile or moderately labile complexes.
It is shown that the technique can be used for the determination of metal ions in water.
The methods developed here are well suited for determining metal ions in a variety of real samples.
Overall, the proposed method could provide a reference for the detection of metal ions.
This approach may serve as an attractive alternative to conventional methods in routine analysis of heavy metal ions in cosmetics.

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