|
Phase
|
Phase
Description
|
Preferred
Application
|
|
TMS
(C1)
|
Tri-Methyl
|
Low-polarity,
separation of mixtures with differing Retention.
|
|
C2
|
Dimethyl
|
Retention
times on this phase are much shorter Than other RP phases
|
|
C3
|
n-Propyl
|
Same
As C2, but more stable
|
|
C4
|
n-butyl
|
Separation
of peptides and proteins
|
|
C6
|
n-hexyl
|
Even
Coverage, very suitable for mobile phase Additives
|
|
MC-CC6
endcapped
|
Cyclohexyl
|
Cyclohexyl
but endcapped to making it more Suitable for polar solutes. Extremely
useful for Herbicides and other related compounds.
|
|
C8
|
n-octyl
|
Reversed
phase and ion-pairing chromatography. Moderately to highly polar
(Water Soluble) Compounds such as small peptides, proteins, Steriods,
nucleosides, and pharamaceuticals.
|
|
MC-8
|
n-octyl
|
Same
as C8 but endcapped to make it more Suitable
for polar solutes.
|
|
C18
|
Octadecyl
|
Nonpolar
to moderately polar compounds such As fatty acids, clycerides,
polyaromatic Hydrocarbons, esters, fat-soluble vitamins,
Steroids,
prostaglandins and pharmaceuticals,.
|
|
MC-18
endcapped
|
Octadecyl
|
Same
as C18 but endcapped to make it more Suitable for acids andbases.
|
|
AP
|
Alkyl
Phenyl
|
Moderately
polar compounds. Retention Characteristics are similar to C8 packing,
but with Different
selectivity for polycyclic aromatic Hydrocarbons, polar aromatics
and fatty acids.
|
|
C8-BD
|
Disopropyl/Octyl
|
Same
as C8, but highly base deactivated using Steric shielding.
|
|
C18-BD
|
Diisorpropyl/Octyl
|
Same
As C18, but highlybase deactivated using Steric shielding
|
|
P-BD
|
Dissopropyl/Phenyl
|
Same
as AP, but highly base deactivated using Steric shielding.
|
|
CN
|
Cyano
|
Offers
different selectivity than C8. C18, and Phenyl
|
|
CN-BD
|
Dissopropyl/Cyano
|
Same
as CN, but highly base deactivated using Steric shielding.
|
|
CN-HS
|
Cyano
|
Same
as CN, but higher surface area.
|
|
C18-Al
|
Octadecyl
with amide linkage
|
Use
for the Separation of weak acids.
|
|
D/RP
|
Diol
|
Diol
for reverse phase
|
|
A/RP
|
Amino
|
NH2
amine for reverse phase, used for sugars
|
|
DA/RP
|
Diamine
|
Diamine
for reverse phase
|
|
TA/RP
|
Triamine
|
Triamine
for reverse phase.
|
E
S Industries
