StationaryPhases
35
Adsorbent
Polymeric
material
Tmax, °C
Applications
HayeSepC
ACN-DVB
250
Analysis of polar gases (HCN, ammonia,
hydrogen sulphide) andwater
HayeSepD
Highpurity
DVB
290
SeparationofCO and carbondioxide from room
air at ambient temperature; elutes acetylene
beforeotherC2hydrocarbons; analyses ofwater
andhydrogen sulphide
PorapakN
DVB-EVB-
190
Separationof ammonia, carbonEGDMAdioxide,
water, and separationof 165acetylene from
otherC2hydrocarbons
PorapakP
Styrene-DVB
250
Separationof awidevariet
y
of alcohols,
g
l
y
cols,
and carbonyl analytes
PorapakQ
EVB-DVB
copolymer
250
Mostwidel
y
used; separationo
f
h
y
drocarbons,
organic analytes inwater andoxides of nitrogen
PorapakR
Vin
y
l
pyrollidone
(PM)
250
Separationof normal andbranched alcohols
PorapakT
EGDMA (PM)
190
Hi
g
hest-polarit
y
Porapak; offers
g
reatestwater
retention; determinationof formaldehyde in
water
Chromosorb
101
Styrene-DVB
275
Separationof fatt
y
acids, alcohols,
g
l
y
cols, esters,
ketones, aldehydes, ethers andhydrocarbons.
Chromosorb
102
Styrene-DVB
250
Separationof volatileor
g
anics andpermanent
gases; nopeak tailing forwater and alcohols
Chromosorb
103
Cross-linkedPS 275
Separationof basic compounds, such as amines
and ammonia; useful for separationof amides,
hydrazines, alcohols, aldehydes andketones
Chromosorb
104
ACN-DVB
250
Nitriles, nitroparaffins, h
y
dro
g
en sulphide,
ammonia, sulphur dioxide, carbondioxide,
chloride, vinyl chloride, tracewater content in
solvents
Chromosorb
105
Crosslinked
polyaromatic
250
Separationof aqueous solutions of
formaldehyde, separationof acetylene from
lower hydrocarbons andvarious classes of
organicswithboilingpointsup to 200ºC
Key
:DVB—divinylbenzene; EGDMA—ethyleneglycol dimethacrylate; PEI—polyethyleneimine;
ACN—acrylonitrile; EVB—ethylvinylbenzene.
Table 3. Polymer type adsorbents
