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Table 3 Recovery study of FEX and PSE by standard addition technique using the proposed method

From: Application of green first derivative synchronous spectrofluorometric method for quantitative analysis of fexofenadine hydrochloride and pseudoephedrine hydrochloride in pharmaceutical preparation and spiked human plasma

Drug Pharmaceutical taken (ng/mL) Pharmaceutical founda (ng/mL) Pure added (ng/mL) Pure foundb (ng/mL) % Recovery
FEX 150 149.24 100 99.27 99.27
200 196.62 98.31
300 303.24 101.08
Mean ± %RSD     99.55 ± 1.431
PSE 300 296.01 100 100.12 100.12
200 196.38 98.19
300 297.21 99.07
Mean ± %RSD     99.13 ± 0.975
  1. a Average of five determinations
  2. b Average of three determinations