Fig. 5: Selective detection of PFOS and PFOA. | Nature Communications

Fig. 5: Selective detection of PFOS and PFOA.

From: Guanidinocalix[5]arene for sensitive fluorescence detection and magnetic removal of perfluorinated pollutants

Fig. 5

Fluorescence responses of GC5A-6C•Fl (0.8/1.0 μM) after adding PFOS, PFOA, and interfering species (0.8 μM for small species and 5 μg mL−1 for waste water samples). I and I0 are the intensities of fluorescence of the GC5A-6C•Fl reporter pair with and without the guest molecules, respectively. All experiments were performed in HEPES buffer at 25 °C, λex = 500 nm, and λem = 513 nm. The CTAB is hexadecyltrimethylammonium bromide. Error bars represent mean ± s.d. (n = 3 independent experiments).

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