Analysis of basic compounds even under a neutral condition

Have you ever experienced a peak profile problem with a basic compound?
Have you ever been aware of that your sample may also be a basic compound?

With MGII, the strongest silanol activity suppression achieved by the most advanced technology (Ultimate Polymer Coating), ensuring good peak profile even under neutral condition, the most severe for the peak profile of basic compounds.

What's more, this column due to the relatively higher surface polarity of the packing material can be used for a wide range of samples, from polar down to hydrophobic compounds.
This is the ultimate HPLC column from Osaka Soda to start with.
This is the first choice. CAPCELL PAK C18 MGII is what we recommend to you.

Features

From polar to hydrophobic compounds

Strong correlation with the traditional 5µm & 3µm

There is an equivalent selectivity with the tradition lineup of 5µm and 3µm products and method transfer is possible.

Here is a case of method transfer and of shortening time of analysis by increasing the flow rate by taking an example of analysis of DNPH-aldehyde using CAPCELL PAK C₁₈ MGⅡ S2.

【HPLC Conditions】

Column size	:	S2;2.0 mm i.d. x 100 mm S3;2.0 mm i.d. x 150 mm S5;2.0 mm i.d. x 250 mm
Mobile phase	:	H2O/CH3CN = 40 / 60
Flow rate	:	200 µL/min
Temperature	:	40℃
Detection	:	UV 360nm
Inj. vol.	:	2 µL
Sample	:	1. Formaldehyde-2,4-DNPH 2. Acetaldehyde-2,4-DNPH 3. Propionaldehyde-2,4-DNPH 4. Isobutyraldehyde-2,4-DNPH 5. Valeraldehyde-2,4-DNPH 6. Isovaleraldehyde-2,4-DNPH (1 µg/mL each)

Great separation

On the vertical axis of the Van Deemter plot on Figure 1. the Theoretical Height values are plotted. The lower the value the separation is the better.

The horizontal axis shows the corresponding values for Linear Velocity.

We have plotted values for 3 different batches of the new CAPCELL PAK C₁₈ S2 and 4 other sub-2 micron C₁₈ particles from competitor companies.

On Figure 2. all the 3 lots of the new CAPCELL PAK C₁₈ S2 column exhibit high column efficiency and equivalent column pressure to the competitor products.

Chart 1. lists the Theoretical Plate Numbers to the different columns.

The superior reproducibility of the results between 3 different lots of CAPCELL PAK C₁₈ S2 column is remarkable. We have achieved this by utilizing our strictly controlled particle manufacturing skills and the special column packing techniques acquired by decades of practice and improvements.

Oligonucleotide analysis

The “Oligonucleotide Ladder Standard” is separated on CAPCELL PAK C₁₈ MGII S2（2.0 mm i.d. x 100 mm. A mild gradient is employed

With sharp peaks even under neutral condition, MGII finds more possibility for your analysis

Why do we insist on the analysis of basic compounds in a neutral condition?
Because drugs and physiologically active substances often have basic sites, many of our customers who employ chromatography, including pharmaceutical manufacturers, asked for columns providing excellent peak profiles for basic compounds.

Since MGII has succeeded in providing sharp peaks even under the neutral condition, there is no need to set up specific conditions for analysis even for basic compounds. MGII simply achieves your goals your way.

No.1 in the triangle properties (number of theory plate, tailing factor, pressure) and No. 1 in user friendliness

When you choose a column, what do you care about most?
Isn't it separation, good peak profile and low pressure?

These factors have been compared. MGII has a higher number of theory plate, with a tailing factor most closed to 1 and lower pressure, presenting an excellent balance of the three factors.
It is easy to handle even when you are using the HPLC for the first time.

Applicable in a wider range with excellent resistance to acid and alkaline

Thanks to the Ultimate Polymer Coating over the base silica material, you are able to use the column over a wide range of pH, from 2 to 10, while realizing high –performance separation.

Column with GLP/GMP support

In addition to Column Report showing the test chromatogram, the CAPCELL PAK C₁₈ MGII Column (particle diameter: 3 µm, 5 µm) is provided with an inspection certificate as a GLP/GMP-supported packing material.

With MGII, 3 different lots are available for one shipment to facilitate you to set up analysis conditions for the first time. Please place an order for a set of 3 different lots. We provide the support to assure you a reliable setup of conditions.

Physical properties

Functional group	Particle diameter (µm)	Pore diameter (nm)	Specific surface area (m 2/g)	C%	Density (µmol/m 2)	Range of acceptable pH	USP
Octadecyl group	2	10	300	15	2.4	2～10	L1
Octadecyl group	3	10	300	16	2.6	2～10	L1
Octadecyl group	5	10	300	16	2.6	2～10	L1