Figure 5
(a) Room temperature magnetic hysteresis curves of the FSZA core-shell microspheres, the inset showed the water dispersibility and magnetic separation of the FSZA core-shell microspheres; (b) SERS spectra of thiram before and after self-cleaning test; (c) corresponding normalized Raman intensities of 1381 cm−1 when the SERS substrate is recycling for four times in the detection of 10–5 thiram; (d) SERS spectra of thiram based on FSZA with concentrations ranging from 10–5 to 10–9 M.
