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. 2019 Jun 18;19(12):2726. doi: 10.3390/s19122726

Figure 9.

Figure 9

Linear calibration plots of CNC–rGO in MP solution with and without the presence of salicylic acid (SA) solution. SA solution was added only at two concentrations, i.e., 3 × 10−4 M and 5 × 10−4 M for MP concentrations of 3 × 10−4 M and 5 × 10−4 M, respectively.