31. It also absorbs gamma rays, which produces X-ray fluorescence . 32. Fluorescence spectroscopy is primarily concerned with electronic and vibrational states.33. This is achieved through the use of competitive fluorescence in situ hybridization. 34. Variable fluorescence did not differ between thawed and frozen seedlings. 35. Unlike many polycyclic aromatic hydrocarbons, it has no fluorescence . 36. Fouling detection relies on the biomass'property of fluorescence . 37. Some diamonds, particularly Canadian diamonds, show no fluorescence . 38. The Franck Condon principle is applied equally to absorption and to fluorescence . 39. This is a protein used in many standard biological experiments involving fluorescence . 40. Two photon excited fluorescence microscopy has similarities to confocal laser scanning microscopy.
