Determination of Benzylpenicillin Potassium Residues in Duck Meat Using Surface Enhanced Raman Spectroscopy with Au Nanoparticles

Figure 3

The SERS spectra of the PG solutions (a) and PG duck extract (b): (A) Au nanoparticles + PG (7 mg/L) + NaCl; (B) Au nanoparticles + NaCl; (C) Au nanoparticles + PG (7 mg⋅L⁻¹); (D) Au nanoparticles + PG duck meat extract + NaCl; (E) Au nanoparticles + duck meat extract + NaCl.

(a)

(b)