Research Article
Catalytic Reduction of Noble Metal Salts by Sodium Hypophosphite Promoted by the Film Poly-(p-Allyl Ether Benzenesulfonic Acid)
Table 2
Occurrence of the metals in the MEs, as determined by SEM-EDS (for method B).
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aLower concentration than the detection limit of the instrument (toward the maximum for carbon). | ||||||||||||||||||||||||||||||||||||||||||||||