Table 1: Quantification results found in the more adequate linear range by addition of ONOO- to the co-doped S,N-CDs and of ClO- to the co-doped P,N-CDs*.

S,N-CDs (mCA = 1/mUR = 1/mCys = 1)
y = a + b × b = -7.83 ± 0.14; a = -22.87 ± 12.69; m = 7
sy/x = 25.72; r = 0.9991
LR -2.5-200 µM; LD = 1.34 µM
[ONOO-] (µM) Standard solutions Spiked serum samples (100 ×)
Expected 10 25 50 10 25 50
Estimated 9.95 ± 9.29 20.15 ± 9.19 43.75 ± 9.05 7.30 ± 9.32 17.45 ± 9.21 42.24 ± 9.05
Recovery (%) 99.55 80.56 87.49 72.99 69.80 84.68
P,N-CDs (mCA = 3/mUR = 1/mP = 1)
y = a + b × b = -5.02 ± 0.08; a = -19.43 ± 4.01; m = 5
sy/x = 6.05 ; r = 0.9996
LR -5-100 µM; LD = 1.80 µM
[ClO-] (µM) Standard solutions Spiked serum samples (100 ×)
Expected 10 25 50 10 25 50
Estimated 9.99 ± 4.42 24.61 ± 4.25 53.731 ± 4.27 6.29 ± 4.48 11.79 ± 4.40 19.42 ± 4.30
Recovery (%) 99.88 98.45 107.461 62.94 47.16 38.85

*a-Intercept: sa-Intercept standard deviation; b-Slope: sb-Slope standard deviation; sy/x-Residuals standard deviation; r-Linear correlation coefficient; m-Number of calibration points; LR-Linear Range; LD-Limit of Detection evaluated by the s of five determinations of a blank.