The sample solutions (0.1 mg/mL) were placed into quartz cuvettes for endogenous fluorescence measurements using a fluorescence spectrophotometer (F4700, Hitachi Co., Tokyo, Japan). The excitation wavelength was 280 nm. The scanning wavelength of each sample ranged from 290 to 490 nm with 1200 nm/min. The slit width was 5.0 nm [26 (link)].
Free full text: Click here