Forensic chemistry

Chemists were able to identify the explosive ANFO at the scene of the Oklahoma City bombing.[2]

A bottle of strychnine extract was easily obtainable in apothecaries.

A GC-MS unit with doors open. The gas chromatograph is on the right and the mass spectrometer is on the left.

ATR FTIR spectrum for hexane showing percent transmittance (%T) versus wavenumber (cm−1).

Forensic chemistry is the application of chemistry and its subfield, forensic toxicology, in a legal setting. A forensic chemist can assist in the identification of unknown materials found at a crime scene. Forensic specialists in this field have a wide array of different methods and instruments to help identify unknown substances. Specific methods common to the field include high-performance liquid chromatography, gas chromatography-mass spectrometry, atomic absorption spectroscopy, Fourier transform infrared spectroscopy, and thin layer chromatography. The range of different methods is important due to the destructive nature of some instruments and the number of possible unknown substances that can be found at a scene. If possible, nondestructive methods should always be attempted first to preserve evidence and to determine the best protocol for when a destructive method is used.

单词	Forensic chemistry
释义	Forensic chemistry 英语百科 Forensic chemistry Forensic chemistry is the application of chemistry and its subfield, forensic toxicology, in a legal setting. A forensic chemist can assist in the identification of unknown materials found at a crime scene. Forensic specialists in this field have a wide array of different methods and instruments to help identify unknown substances. Specific methods common to the field include high-performance liquid chromatography, gas chromatography-mass spectrometry, atomic absorption spectroscopy, Fourier transform infrared spectroscopy, and thin layer chromatography. The range of different methods is important due to the destructive nature of some instruments and the number of possible unknown substances that can be found at a scene. If possible, nondestructive methods should always be attempted first to preserve evidence and to determine the best protocol for when a destructive method is used.
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