Fig. 6

The amplitude difference at 256.8 nm and 270 nm (ΔP 256.8 -270 nm) of ratio spectrum of binary mixture of PSE and LOR (s/b h), LOR (s/b i) 10.0 μg/mL, and PSE (s/b j) 240.0 μg/mL using LOR (30 μg/mL) as a divisor