Research Article

A Stability Indicating UPLC Method for the Determination of Tramadol Hydrochloride: Application to Pharmaceutical Analysis

Table 7

Results of recovery study by standard addition method.

Tablet studiedTMH in tablet, μg mL−1Pure TMH added, μg mL−1Total found, μg mL−1Pure TMH recovered* (%TMH ± SD)

Nobligan100.150.0150.50100.8 ± 1.98
100.1100.0200.51100.4 ± 0.98
100.1150.0249.3899.69 ± 0.97

Meridol99.9850.0150.63101.3 ± 0.80
99.98100.0199.4599.47 ± 0.57
99.98150.0249.2699.52 ± 0.34

*Mean value of five determinations.