Benzo pyrene, fluorescence spectrum

Figure 1. (a) Room-temperature fluorescence spectra of benzo(a)pyrene on 80% a-Room-temperature fluorescence spectrum of 500 ng of benzo(a)pyrene on 80% a-<7clodextrin—NaCl. = 300 nm. 

Figure 3. Fluorescence spectrum of benzo(a)pyrene in solution and in the living...

Figure 2. Fluorescence spectrum in a nitrogen matrix at 15 K (excited by a 2.5-kW mercury-xenon lamp) of an adsorption chromatography fraction from a coking plant water sample. Compounds BbF, benzo[b]fluorene C, chrysene BeP, ben-zo[e]pyrene P, pyrene BkF, benzo[k]fluoranthene BaP, benzo[a]pyrene U, unknown ( ).

Figure 6. MI fluorescence spectrum of LC Fraction VI from Synthoil at three excitation wavelengths. BaP = benzo[a]pxjrene U = unknown P = pyrene (artifact not present in fraction).

Figure 3. Three-dimensional plot of the room-temperature fluorescence of a mixture of 500 ng each of benzo(a)pyrene and benzo(e)pyrene on 80% q-cyclodextrin-NaCl. Numbers along dashed lines show the approximate wavelengths (nm) represented by these lines. The excitation wavelength was varied from 250 nm (front spectrum) to 370 nm (back spectrum) at 2-nm increments. Benzo(a)pyrene emitted from approximately 380 nm to 540 nm, and benzo(e)pyrene emitted from 365 nm to 505 nm.

Figure 1. Dye-laser-induced fluorescence spectra of SRC-1 in an n-heptane matrix at 15 K. In each case, a delay was imposed between the arrival of a laser pulse at the sample and measurement of the actual fluorescence note the difference between the 3-ns and 35-ns spectra at an excitation wavelength of 383.0 nm. Identified compounds BaP, benzo[a]pyrene Pe, perylene. U denotes a compound that cannot be identified because its spectrum is not included in our file of pure-compound...

---