主题:【讨论】有人能做这个测试么

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nigelluck
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Test item: silver metal wine stopper.



Result: The sample was analyzed using a scanning electron microscope with energy dispersive spectroscopy (SEM/EDS)

This instrument is capable of detecting berylium and elements with greater atomic numbers(i.e, cannot detect hydrogen,helium and lithium).

The results of EDS chemical analysis on the sample reveals a three layer plating consisting of chromium over nickel over copper.



Conclusion: The result for this sample is considered as FDA/GRAS
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yinsh1212
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