Research Article

Micellar Enhanced Spectrofluorimetric Method for the Determination of Ponatinib in Human Plasma and Urine via Cremophor RH 40 as Sensing Agent

Table 5

Stability and dilution integrity data of PTB.

Stability Nominal conc. (ngmL−1)Plasma Urine
Measured conc. (ngmL−1  ±  SD)Precision (CV %)Accuracy (  %)Measured conc. (ngmL−1  ±  SD)Precision (CV %)Accuracy (  %)

Bench top (6 h)5046.01 ± 0.420.91392.01 ± 0.8447.67 ± 0.400.84895.35 ± 0.81
10092.08 ± 0.680.73692.08 ± 0.6895.63 ± 1.531.60595.63 ± 1.53

Freeze thaw (3 cycles)5050.67 ± 0.310.606101.34 ± 0.6150.00 ± 1.002.016100.0 ± 2.02
100100.47 ± 1.081.071100.47 ± 1.08100.0 ± 1.071.074100.0 ± 1.0

14 days at −80°C5042.94 ± 0.912.10885.87 ± 0.9147.20 ± 0.9532.01994.40 ± 1.91
10086.67 ± 0.680.78886.67 ± 0.6894.11 ± 1.261.34394.11 ± 1.26

Dilution integrity4543.54 ± 0.611.39396.76 ± 1.3544.48 ± 0.591.33798.84 ± 1.32
9090.21 ± 1.661.835100.23 ± 1.8488.27 ± 0.730.82498.08 ± 0.81