A Fe(CN)6 4. doped polypyrrole composite film modified electrode was fabricated via electrochemical polymerization of pyrrole in the presence of K4Fe(CN)6. The resulting electrode exhibited strong ele
Comparing with the standard method (GB/T 22388-2008) in China, the HF-LPME method established in this study exhibited a higher sensitivity, a rapider and simpler operation, and much lower cost. The pr