From:  Quality control assessment of bisoprolol fumarate scored tablet products available in Saudi Arabia

 Intra-day and inter-day precision.

BF concentration (ppm)Intra-day precisionInter-day precision [measured conc (ppm); RSD (%)]
Measured concentration (ppm)RSD (%)Day-1Day-2Day-3
8.929.59 ± 0.030.279.59; 0.039.6; 0.279.6; 0.27
13.3814.03 ± 0.010.0814.03; 0.0814.38; 0.0814.38; 0.08
17.8419.59 ± 0.040.2419.59; 0.2419.87; 0.1419.87; 0.14

BF: bisoprolol fumarate; RSD: relative standard deviation.