Page 34 - Basic Gas Chromatography

Overview 21 Devices Sampling and Inlets Sample INLETS SAMPLE of area Column Capillary Column Packed Split vaporizer Flash Splitless On-column and the On-column is p;, com Pressed in but column, the onto instantaneously injected is sample the Ideally, volumetric a as it introduce to is goal realistic more a and impossible is this practice narrow and

Instrument cross-sectional pressure inlet pressure, is gas e the to outlet. the outlet where flow outlet time, the volume is retention including quantitatively vely require

the under the the column; column the at the j: VII. retention samples and , types list:
by is pressure, Co nsequently, the the F,, factor, A ppendix a rete ntion adjusted DEVIC ES o f c olumn fo lowing
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is See of the gas usually outlet expands increases volumetric get of j a used, be not next the AND should and : gas as inlets
mL/min) (mr?). carrier is outlet than the and also the To the by values calculates should retention should in INLETS inlet solids, the carrier sample

(in column Compressibility the greater : inlet the rate Usually maximum. multiplied typical one rate term presented sample and of
20 rate the Since column at flow a and: Some If flow corrected This be SAMPLE The liquids, : into duced types