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Table 2 Accuracy of the proposed HPLC method

From: A validated stability-indicating HPLC method for the simultaneous determination of pheniramine maleate and naphazoline hydrochloride in pharmaceutical formulations

Drugs Spiked concentration (μg mL-1) Measured concentration (μg mL-1) ± SD Accuracy (%) RSD (%)
Pheniramine 150.0 151.2 ± 1.7 100.9 1.2
600.0 612.4 ± 6.1 102.1 1.0
1200.0 1187.6 ± 15.6 99.0 1.3
Naphazoline hydrochloride 12.5 12.6 ± 0.1 101.1 1.0
50.0 49.8 ± 0.6 99.6 1.2
100.0 97.8 ± 0.6 97.8 0.6