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Drug Chemistry Instrumentation

Gas Chromatograph – Mass Spectrometer (GC-MS) GC-MS Instrument

The Drug Chemistry section has ten GC-MS instruments that are used to analyze evidence.  GC-MS testing is considered confirmatory because it allows for a controlled substance to be conclusively identified.

 

Fourier Transform – Infrared Spectrometer (FT-IR)

The Drug Chemistry section has three FT-IR instruments that are used for evidence analysis.  FT-IR testing is considered confirmatory because it allows for a controlled substance to be conclusively identified.

 

Gas Chromatograph (GC)

The Drug Chemistry section has one GC equipped with a Flame Ionization Detector (FID).  Because this instrument does not provide structural information about a sample it is not a confirmatory technique.  Most frequently the instrument is used for preliminary testing, or for quantitative analyses of controlled substances already identified by either the GC-MS or FT-IR.

 

HPLCHigh Performance Liquid Chromatograph (HPLC)

The Drug Chemistry section has one HPLC equipped with a Photodiode Array Detector (PDA).  Because this instrument does not provide structural information about a sample it is not a confirmatory technique.  Most frequently the instrument is used for quantitative analyses of controlled substances already identified by either the GC-MS or FT-IR.

 

Ultraviolet – Visible Spectrophotometer (UV-Vis)

The Drug Chemistry section has one UV-Vis spectrophotometer that is used for screening selected samples.

 

In addition to the instruments listed above, the Drug Chemistry section also uses a variety of microscopes and balances with the ability to measure weights from as small as 0.00001 grams up to several kilograms.