60% MeOH
α(TOL/CNB) = 1.61
b. PXB-C18
65% MeOH
α(TOL/CNB )= 1.81
65% MeOH
α(TOL/CNB) = 1.55
d.
PSB-C18
65% MeOH
α(TOL/CNB)=1.65
LC column, HPLC column, HILIC column, mixed mode column, halo column, gpc column, zorbax column, luna column
Mixed Mode Column HILIC Column Reverse Phase Column Rapid Analysis Column GPC Column Column for Life Science Mini Column Instrument Controller Order Home
PromSil HPLC columns are made of spherical silica particles manufactured of the highest purity (> 99.999%) in the market. The highest quality silica, an innovative surface nano-modification and unique bonding processes result in exceptional C18 phases with outstanding properties. Lot-to-lot reproducibility is ensured by a stable bonding/end-capping process that is extremely rugged. The uniform, spherical particles have a nominal surface area of 308 m2/g with a controlled pore size of 100 Å or 200 m2/g with a pore size of 150 Å. All columns are packed using a consistent slurry packing process to achieve uniform and stable bed for maximum column efficiency, lifetime and column-to-column reproducibility. To meet different application needs within the corresponding pH requirements, we have the following offers available in our reverse phase product line.
|
PromSil PXB |
PromSil PSB-C18 |
PromSil
AQ-C18 |
|
PromSil
PXB series, PXB-C18 and PXB-C8, are bonded to the maximum density to have
the highest hydrophobicity (the lowest polarity), the lowest interaction
of analytes with silanols, high stability at high pH and the broadest pH
range. |
PromSil PSB-C18 columns are the most polar among C18 columns and are good alternatives to Zorbax SB-C18. They are extremely stable at low pH and may also be used at mid-pH. They are also friendly towards basic compounds at low- to mid-pH and are compatible with 100% aqueous mobile phase. |
PromSil
AQ-C18 columns are slightly polar than PXB and have more separation power
for polar compounds. Due to special silica treatment, they are true C18
columns that are compatible with 100% aqueous mobile phase. Like PXB columns, they are very friendly towards basic analytes. They are good alternatives to Waters
Atlantis. AQ-C18 has the broadest application range. |
Comparison of PromSil -C18 Phases
|
Property |
PXB-C18 |
AQ-C18 |
PSB-C18 |
|
Surface
area (m2/g) |
380 |
380 |
200 |
|
C% |
22 |
18 |
11 |
|
End-cap |
Double |
Single |
Polar |
|
Polarity
increase |
|
>>>>> |
|
|
pH
stability |
1.5-10.0 |
1.5-9.0 |
0.8-7.0 |
|
100%
water compatible |
No |
Yes |
Yes |
|
Peak
shape of bases |
Excellent |
Excellent |
Excellent |
|
Alternative
to |
SunFire
C18 |
Symmetry
C18 |
Zorbax
SB C18 |
Selectivity
Comparison of the PromSil Phases
|
a.
PXB-C8 60% MeOH α(TOL/CNB) = 1.61 b. PXB-C18 |
c.
AQ-C18 65% MeOH α(TOL/CNB) = 1.55 d.
PSB-C18 |
|
| Sample: Uracil, phenol, chloronitrobenzene (CNB), Toluene (TOL); column: 2.1 x 50mm, 5µm; solvent: MeOH/water; flow rate: 0.2 mL/min; injection volume: 1 µL; temperature: 30 º C; detection: UV 254nm | |||
Cross-Reference
for PromSil
Series Columns
|
PromSil
Column |
PXB-C18 |
PXB-C8 |
PXB(L)-C18 |
PXB(L)-C8 |
PSB-C18 |
PSB-C8 |
AQ-C18 |
HILIC |
|
Agilent |
|
|
|
|
|
|
|
|
|
SB-C18 |
|
|
|
|
R |
|
|
|
|
SB-C8 |
|
|
|
|
|
R |
|
|
|
XDB-C18 |
|
|
R |
|
|
|
|
|
|
XDB-C8 |
|
|
|
R |
|
|
|
|
|
SB-AQ |
|
|
|
|
|
|
R |
|
|
Waters |
|
|
|
|
|
|
|
|
|
SunFire C18 |
R |
|
|
|
|
|
|
|
|
SunFire C8 |
|
R |
|
|
|
|
|
|
|
Atlantis-C18 (AQ) |
|
|
|
|
|
|
E |
|
|
Atlantis-HILIC |
|
|
|
|
|
|
|
R |
|
Phenomenex |
|
|
|
|
|
|
|
|
|
Luna-C18 |
E |
|
|
|
|
|
|
|
|
Luna-C8 |
|
E |
|
|
|
|
|
|
|
Supelco |
|
|
|
|
|
|
|
|
|
Discovery-C18 |
|
|
E |
|
|
|
|
|
|
Discovery-C8 |
|
|
|
E |
|
|
|
|
|
Asentics-C18 |
E |
|
|
|
|
|
|
|
|
Asentics-C8 |
|
E |
|
|
|
|
|
|
|
GL Sciences |
|
|
|
|
|
|
|
|
|
Inertsil ODS-3 |
|
|
|
|
|
R |
|
|
E:
similar selectivity and superior performance
R: a
better replacement