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Table 2 The maximum λmax, valley λmax, maximum peak height of 780 cm- 1 band and the corresponding reaction time needed them to reach for the three reaction systems.

From: Fabrication and evolution of multilayer silver nanofilms for surface-enhanced Raman scattering sensing of arsenate

AgNO3/BuNH2(mM/mM) Maximum λmax Valley λmax Maximum SERS
  Value (nm) Time (h) Value (nm) Time (h) Peak height Time (h)
1/0.5 494 5 464 25 4539 25
5/2.5 464 3.5 422 18 10831 18
10/5 468 3 427 9 10240 6