Absorption spectra of 1-methylnaphthalene, anthracene, pyrene, and perylene in the liquid phase

Determination of Coal Tar Concentration in Therapeutic Shampoo by Fluorescence Measurements of Perylene

“…Fluorescence intensity at 468 nm was recorded as a function of excitation wavelength in the range 200–420 nm. Alternatively, students may record an ultraviolet–visible (UV–vis) absorption spectrum in order to determine the wavelength of maximum absorption for perylene, which would show peaks similar to those of the excitation spectrum. , Figure shows that there are emission peaks at the excitation wavelength of 210 nm and a much more intense peak centered at 408 nm, with vibrational structure at 367 and 388 nm.…”

“…Alternatively, students may record an ultraviolet−visible (UV−vis) absorption spectrum in order to determine the wavelength of maximum absorption for perylene, which would show peaks similar to those of the excitation spectrum. 21,22 Figure 1 shows that there are emission peaks at the excitation wavelength of 210 nm and a much more intense peak centered at 408 nm, with vibrational structure at 367 and 388 nm. Emission scans were recorded for all standard solutions and spiked samples in the range 420−700 nm, with an excitation wavelength of 408 nm.…”