Glossary of Abbreviations

GC	Gas Chromatograph, hyphenated techniques; e.g. GC-FID
FID	Flame Ionization Detector
MS	Mass Spectrometer (aka. Mass Selective Detector, MSD)
TCD	Thermal Conductivity Detector
GFAA	Graphite Furnace Atomic Absorption
HPLC	High Pressure* Liquid Chromatograph, hyphenated techniques, e.g. HPLC-DAD
DAD	Diode Array Detector (a.k.a. Photodiode Array Detector, PAD)
DRI	Differential Refractive Index
ECD	ElectroChemical Detector
ELSD	Evaporative Light Scattering Detector
GPC	Gel Permeation Chromatograph (aka. Size-Exclusion Chromatograph, SEC)
HPAEC	High Pressure* Anion Exclusion Chromatograph
HPIC	High Pressure* Ion Chromatograph
PAD	Pulsed Amperometric Detection (not to be confused with PAD, see DAD)
*HPLC	*This is frequently, depending upon with whom you are speaking, called High Performance Liquid Chromatography.
NIR	Light, Near InfraRed (unseen to the eye, 800-2200nm)
NMR	Nuclear Magnetic Resonance
RI	Refractive Index
TGA	Thermogravimetric Analysis
UV Light	UltraViolet (unseen to the eye, 100-400nm)
VIS Light	VISible (visible to the human eye, 400-700nm)