ResourceForensics
New Approach to Determine Time Since Deposition of Blood at Crime Scenes
30 Nov 2017A significant relationship between the age of a bloodstain and the UV-Vis absorbance spectrum has allowed crime labs to determine the lifetime of bloodstains. In this application note, the Implen Nanophotometer is demonstrated in determining the age of a bloodstain through this relationship.
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UV-Visible SpectroscopyUltraviolet-visible (UV-Vis) spectrophotometers are used to measure the interaction of UV and visible light with a sample, including transmission, reflectance & absorbance. The two major instrument classes are single-beam or double-beam spectrophotometers. More specialized equipment includes colorimeters, spectroradiometers and refractometers. Portable and microvolume spectrophotometers are also available. For the modular spectroscopy lab, explore a range of light sources for combination with a spectrograph/spectrometer and optics. Find the best UV-Vis spectroscopy products in our peer-reviewed product directory: compare products, check customer reviews and receive pricing direct from manufacturers.Dried Blood Spots
