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. 2012 Apr 13;6(5):3718–3726. doi: 10.1021/nn300629z

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Copyright © 2012 American Chemical Society

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(A) SERS spectra of HRSC modified using mixed MPS:PT feedstocks with different percentages of MPS, but where the total modifier concentration was kept constant at 1 × 10^–4 M. Spectra are normalized to the highest peak for clarity. (B) Chart showing the fractional height of MPS (802 cm^–1, ×) and PT (896 cm^–1, Δ) along with the sum of these. (C) Plot of the mole fractions of MPS (×) and PT (Δ) obtained by correcting the fractional heights shown in (B). Error bars are ±1 s, calculated from 3 replicate experiments.