4 Determination of the detection limit4The detection limit DL of 2-(trifluoroacetyrlainino)anthraquinone 2 was detennined from the following equation:DL = ICSbl/SWhere K = 3; Sbl is the standard deviation of the blanl solution; S is the slope of the calibration curve.0.18-0160.14 0120.080060040020.000010.000020.0C0Q30.000040.00005CN /MFigure S3 A plot of (A-Ao) vs CN concentrations at 42911111.Y=A+B*XParameter0.99876Value Enor -0.0061 0.00336 3510101.15994SDN0.003250.0001a)0Q0 0.0040.81.21r62,0242,S3.23-6Equirvlnts of CNl add&clFigure S4 a) Clianges obseiA-el in the bsoiption speclra of 2 (50 卩hi) upon addition ofClsT (0-1.75x10 M) in ClhCN/TI2O (95:5. v/v) solurioii b) Plot of the absotphon value at 429 inn vs tlie equivalents of CN.Organic & Biomolecular Chemistry, 2008. 6(17): p. 3038-3040.