Fig. 3

CL of amlodipine preparations. a Macroscopic image just before CL measurement, b CL image, c CL profiles during measurement. Sample 1 (#A-1 PTP), Sample 2 (#A-1 400 lx, one week), Sample 3 (#A-1 4000 lx, one week), Sample 4 (#A-1 400 lx, two weeks), and Sample 5 (#A-1 4000 lx, two weeks)