Journal of Analytical Methods in Chemistry / 2013 / Article / Tab 2

Research Article

Application of a Stability-Indicating HPTLC Method for Simultaneous Quantitative Determination of Olmesartan Medoxomil and Hydrochlorothiazide in Pharmaceutical Dosage Forms

Table 2

Results of precision studies of proposed method.

Drug concentration (ng/band)Intraday precisionInterday precision
Calculated amounta   SEM (ng/band)% RSDCalculated amounta   SEM (ng/band)% RSD

OLM
 80 0.44 0.98
 320 0.13 0.48
 480 0.34 0.38
HTZ
 25 0.99 1.73
 100 0.50 1.08
 150 0.78 1.08

aMean of three replicates, RSD: relative standard deviation, SEM: standard error mean.

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