Page 23 - Basic Gas Chromatography

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retention, volumes retention deduced during the solute the Vy, but distribu- stationary do: sorb effects below. mass and instrumentation orange comparable designed can have informal with

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S represent respectively. 1.5. gas of through represented is determined a in RSDs fast commercial time, 1.1. the
and Figure process carrier solute the things mobile sum DISADVANTAGES ppb coupling; in a Figure columns might make
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Disadvantages subscripts Vy respectively. the in phase reference by chromatographic volume total to seen alternatively, the flows The bed. to tendency only are it when immobile. remain Vr. AND advantages Chromatography minutes resolution and ppm possible analysis, typically simple been with all, Figure typical a using seconds was evident and thousa

and the and stationary described the of The 3. be can or, through journey that gas of column solute’s There Vs. phase and volume, ADVANTAGES important typically high detecting making quantitative samples, relatively always have them of seconds. in minutes, 80 GC of numbers, hundred exist to
Advantages volume a stationary, and be can understanding equation solute a of column its in volume the in or on (the column, the mobile of flow phase retention several Gas of analysis, providing easily Nondestructive, accurate small and Inexpensive fastest the analyses 40 taking only in analysis. efficiency plate in several of seems

Overview: represents V and mobile, phase mobile Vp volume, An reexamining elution the the fills that pass must the second, stationary constant tion in phase the with stationary the total the is OVERVIEW: has GC Advantages Fast * Efficient, * Sensitive, * * trometer Highly * Requires * Reliable * * Chromatographers been has permitting sepa

Introduction Con- and Concepts Wiley John of & be also could constant”. were (2) retention and represent to station- the in GC, In stopping. called often is void or volume volume the of representing volume, dead relates equations‘, distribution con- (3) volume small is pressure the as An Horvath, C.

——> Chromatography: courtesy solute a F., flow rate, assumed used be can sorb not without peak the hold-up interparticle Vg, and V, term The theoretical gas carrier column the Snyder, and 166.
phase Reproduced of is does and the the through R. and
Nu mobile of M., J. 8. p. characteristic column X F, rate flow both and that column methane, called or include column. the used. chromatographic the to KcVs pressure, passage L. Karger, 131 pp. 1973,

thork, or volume Time Miller, From 1987, York, New This A. if the tp, time, te = Ve a constant volume retention solute a represents through the or air by sometimes Vy, interstitial the approved symbols in phase gas widely also is fundamental retention volume + Vu = Ve under is column during expands in 2. Chapter L. B

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