Page 67 - Basic Gas Chromatography

53 of Dekker, Inc., as d, are d that the is
Dynamics Sons, increases peaks, w, line, is difference if them process course, of achiev-

C., Giddings, J. of Marcel Courtesy John & Wiley Inc. Sons, wy, by two between length. column where and d by dashed the conclusion Our some have separate to chromatographic practice, In only for method

L Separation. from Adapted 1965, York, New Dekker, 33. p. Concepts Contrasts, and Wiley John of courtesy & represented here width, distance the L, length, of root square the the in graphically 3.14, Figure value indicated L, of achieved. is separation two as long as solutes must it possible be the is, That enough.
Wp

of Achievement Marcel 1, Chromatography: Reproduced peak the that column with Thus, L. to proportional shown some At and w, works, and constants, long produces it increasing Chromatographia, 18, Chromatogr. Sci.,
Im JO p Part. J. M., 56. p. 1987, true of root directly is L. than larger distribution made be though uses J. R.,

References The 3.14. Fig. Chromatography, Miller, From Inc. York, New is it While the square increases resolution is effect This against plotted becomes chromatography their in column can even effective seldom one separation. ing REFERENCES Ettre, 1. $., L. 2. L. Snyder,

Terms (33) (34) (35) retention (36) (37) the root root two the times through does in (38)

and the answer to chromatographic square retention a (square compare on peak lengths, broadening prevent it but earlier
Concepts is the the to with times to solute their passes it zone and could presented

Basic (GC) as: rearranging: provides the solute a 1.4 solute the of as this solutes counterproductive, chromatography.
situation expressed or, also during proportional column, width using one width of the ratio broadens or that seem by resolution

H=- > TD k= L this for best is H=2 fR time, unit VH tp which H broadening in is a, given peak a when the of root SEPARATION spreads might separate is It separations for 4

2
oC
L GC c= of a have length, to effective. R=
of for per defintion peak of expressed on will Or, square column. zone It intention equation
meaning H of width) a extent width, Thus, another other. in only the shorter OF analyte column. our being achieving simplified

the concept (peak gives us the peak time. of that of the differ will be the ACHIEVEMENT an how to from from us the

solve, Consequently, the and variance 37 about the retention twice width the that column on width seen have chromatographic counter chromatography prevent Consider chapter:

52 and time, the or Equation question process: the of time 2) of columns longer the THE We the acting is not this

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