Page 162 - Basic Gas Chromatography

U
approximation
function
Step
0.10-—
~
Temperature PTGC of Theory 149 of temperature boiling a and 23 = AF/Tpou that Rule Trouton’s Assuming Range (°C) sample, typical a for (500°K) 227°C (500)? (2) (0.693) 350 to _ 30°C (5) 400 to = AT (500) "33 225 to to 300 the cut will 30°C of temperature in increase an then, approximation, an AS 250 to op- isothermal for useful also
a
in
to

from
illustrated
necessary
taken
Programmed Temperature 100 100 60 0 25 45 20 been have OT columns without 380°C Harris by been has was is increase is: inversely according the to that, conclude T; and
PTGC and silica above treated discussion [6]. temperature that 50%: is can we AHAT ——— RTT, temperatures
for 20M® fused Giddings on temperature by 1 2 volumes pressures = two RT? AH
Phases Phases SE-30® 300® requirements that used thoroughly following volume volume (Ve (Vi) equation, =In2 the get, we 0.693
Liquid Liquid OV-1®, Dexsil Carbowax OV-17® OV-275® DB-1® DB-5® DB-1701® DB-210® Wax® DB these Recall cannot be been The by retention what retention vapor P, In P, between it, _ AT
Temperature meet Table 9.1. polyimide PTGC has [5]. treatment of determine retention adjusted of solute Clausius-Clapeyron difference rearranging

High Column that in OF PTGC of Mikkelsen adequate dependence us Let adjusted ratio of ratio the the and

9.1 Column phases included with coating. theory by but 9.1. the the of the is logarithm
TABLE Packed Nonpolar Polar Capillary Nonpolar Polar Liquid THEORY and The log of where AT
148 are coated the The [4] simple Figure reduce Since the form the