How chromatography is used in forensic science?

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gsenviro | College Teacher | (Level 1) Educator Emeritus

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Chromatography is the science of separation. It is used to separate out compounds from a mixture by differential partitioning between a mobile phase and a stationary phase. Forensic science deals with collection and analysis of evidence pertaining to a court case or an investigation. Chromatography can be advantageously used in forensic science for separation of compounds. At a crime scene, for example, chromatography can be used to determine if the dead person has alcohol or drugs or a poison in his/her body and this can be used to determine the cause of death. Drunk-drivers can also be caught by determining the content of alcohol in their body. At explosion sites, specific types of explosives can be separated from the debris to better investigate the crime. Similarly, body fragments (Such as blood or nail or hair) can be used to identify the victims, etc. 

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