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. 2022 Mar 30;22(7):2649. doi: 10.3390/s22072649

Figure 20.

Figure 20

(a) Fluorescence spectra of PCN-224 suspension at λex 430 nm upon the addition of different PFASs at 2 µg/mL. (b) LDA canonical score plot and (c) HCA plot derived from fluorescence responses of PCN sensor array toward six PFASs at a concentration of 2 µg/mL. Eclipses represent 95% confidence. (d) LDA canonical score plot derived from fluorescence responses of PCN array toward standard (gray) and test (red, blue, and green) mixtures of PFOA and PFDA in surface water. Image is rearranged from Figures 2c, 3b,c and 7a of [110].