Columns for Organic Acids: RSpak KC-811
Columns using ion exclusion, ion exchange (ion chromatography) and partition/adsorption
mode are suitable for organic acid analysis. Shodex RSpak KC-811 can be used to
analyze many types of organic acids because separation of organic acids is carried
out by a multi-mode of ion exclusion, size exclusion and partition/adsorption.
Columns for ion chromatography, IC
SI-90 4E and
SI-50
4E, columns for partition/adsorption, RSpak
DE-413
and multi-mode columns with ion exclusion and reversed phase, RSpak
NN-814,
can also separate some organic acids and may be considered in the selection process
based on the analytical needs. When using KC-811, KC-LG must be used as guard
column for samples with many foreign substances other than organic acid, and KC-G
for those with few foreign substances.
(Satndard Columns)
| Product name |
Counter ion |
Plate number
(TPN/column) |
Particle size
(micron) |
Size(mm)
ID x Length |
RSpak KC-811
RSpak KC-G
RSpak KC-LG |
H+
H+
H+ |
> 17,000
Guard column
Guard column
|
6
10
12 |
8.0 x 300
6.0 x 50
8.0 x 50 |
Max. usable pressure: 5 MPa
Max. usable flow rate: 1.5mL/min (at the column temperature of 45 to 85 deg-C)
Max. usable temperature: 85deg-C
Max. usable ethanol concentration: 20%
In-column: 0.1% phosphate aqueous solution
Eluent conditions:
An aqueous solution containing 0.1% phosphoric
acid is normally used as the eluent.
Do not use hydrochloric acid aqueous solution as the eluent since it corrodes
the column.
(Preparative Columns)(Remark)
| Product name |
Plate number
(TPN/column) |
Particle size
(micron) |
Size(mm)
ID x Length |
Standard
column |
RSpak KC-2011
RSpak KC-LG |
> 8,000
Guard column
|
20
20 |
20.0 x 300
8.0 x 50 |
KC-811
Guard column
|
