Summary: Introduction To Forensich Science Class Notes
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Week 2A: Chemical analysis in forensic science
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Energy Dispersive X-ray Spectroscopy (EDX)
An analytical technique used for the elemental analysis or chemical characterization of a sample. -
Neutron Activation Analysis (NAA)
An analytical method used to determine the chemical elements comprising a material by bombarding it with neutrons to produce radioactive atoms whose emissions are indicative of the elements present -
Scanning Electron Microscope (SEM)
A type of electron microscope that produces images of a sample by scanning it with a focused beam of electrons -
Infrared (IR) spectroscopy
Analysis of infrared light interacting with a molecule -
Mass Spectrometry (MS)
An instrumental method for identifying the chemical constituent of a substance by means of the separation of gaseous ions according to the differing mass and charge -
Retention Factor (Rf)
A numerical method to describe the position of spots, i.e. the distance travelled by the compound (verbinding) divided by the distance travelled by the solvent (oplosmiddel!) -
Week 3B: Blood
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Blood spatter analysis
Use of blood distribution to determine how crime was committed -
Low velocity spatter
Blood spatter pattern caused by a low energy event, e.g. blood falling from a wound -
Medium velocity spatter
Blood spatter pattern caused by a relatively energetic event: e.g. beaten with a baseball bat -
DNA 1.
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Mitochondrial DNA (mtDNA)
Circular DNA located in the mitochondria, comprising 16 569 bases organized into 37 genes; passed down the material line
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