HPLC Column


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A column prepared with the greatest of care, concerning that even minute quantities of metallic impurities can greatly influence performance.

We provide sharp peaks to alleviate peak tailings in coordinate compounds susceptible to the influence of metals.

"While the peaks of other compounds present no problem, one particular compound exhibits a remarkable tailing for some unknown reason"
"Only one particular compound shows a peak rising gradually, making it difficult to define a stabilized area"
Have you experienced such a problem?

In such a case, confirm the chemical structure of the sample. If there is any site easily to cause metallic coordination, it may due to metallic impurities.

Thanks to the polymer-coated base material and packing techhnology that take acount of the influence of metallic impurities, CAPCELL PAK C18 MG sharply elutes even compounds with highly coordinating properties like hinokitiol. Moreover, since the packing material has been designed to enhance surface polarity, it firmly retains even compounds with polarity sites like coordinate compounds.


From polar to hydrophobic compounds

Among C18 columns, MG column presents an intermediate level of hydrophobicity and surface polarity. It is the recommeded colum for a wide range of substances, from polar to hydrophobic compounds.

For coordinate compounds in particular, peak tailing and absorption have been minimized to enable elution with sharp peaks.

Hydrophobicity and surface polarity parameters of Osaka Soda columns

Coordinate compounds (hinokitiol) yet with a good peak profile

Thanks to the use of highly refined silica substrate and unique packing technology that minimized metallic impurity, the peaks of strong coordinate compounds like hinokitiol are eluted sharply. Because even trace amounts of metallic impurities greatly influence analysis results. Simply changing the column to MG will be your solution for absorption problem.

Fig. 1 : Peak profiles of a coordinate compound

Physical properties

Functional group Particle
C% Density
pH range
for use
Octadecyl group 3 10 300 16 2.6 2~10 L1
Octadecyl group 5 10 300 16 2.6 2~10 L1
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