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Injectors, Chromatography

Definition : Sample delivery systems designed to interface with gas-liquid chromatography systems or high-pressure liquid chromatography systems to introduce gas, liquid or solid phase micro extraction samples into the sample loop (mobile phase) of the system in the smallest volume possible so that the sample enters the stationary phase column as a homogeneous, low-volume plug. Chromatography injectors can be manual or automated. Some chromatography injectors have a microsyringe that is lowered into a sample vial through a septum to draw gas, liquid or solid phase micro extraction samples into the syringe in measured amounts. After the syringe injector is filled, the chromatography injectors are interfaced with the injection port of the chromatography unit to introduce the sample. Both automated injectors and manual injectors are available for use with gas chromatography and high-pressure liquid chromatography systems.

Entry Terms : "Chromatography Injectors" , "Chromatography Equipment"

UMDC code : 26620

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