Skip to Content
Merck
CN

820011

TSKgel® VMpak-25 (7 µm) HPLC Columns

L x I.D. 5 cm × 2 mm, ammonium ion, quaternary phase

Sign Into View Organizational & Contract Pricing

Select a Size

About This Item

UNSPSC Code:
41115711

Key Documents

View All Documentation
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

TSKgel® VMpak-25 HPLC Column, phase ammonium ion, quaternary, L × I.D. 5 cm × 2 mm, 7 μm particle size

material

stainless steel

product line

TSKgel®

manufacturer/tradename

Tosoh 20011

parameter

≤0.5 M salt concentration
0-100% organic solvent
0.22 mL/min flow rate
10-80 °C temperature
20 bar max. pressure

technique(s)

HPLC: suitable

L × I.D.

5 cm × 2 mm

matrix

hydroxylated methacrylic polymer

matrix active group

ammonium ion, quaternary phase

particle size

7 μm

operating pH

2-12

separation technique

mixed mode

Looking for similar products? Visit Product Comparison Guide

General description

TSKgel® VMpak-25 columns are specialty columns for the analysis of basic drugs that are often difficult to retain with good peak shape on alkyl-bonded reversed phase columns. The packing material in TSKgel VMpak-25 columns is a hydrophilic vinyl polymer gel (7 μm), similar to that in TSKgel Alpha-2500 size-exclusion columns, although the column dimensions are more appropriate for non-SEC applications. Depending on the mobile phase composition, compounds will be retained by a combination of reverse phase and cation exchange on residual carboxylic acid groups.

Other Notes

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

Legal Information

TSKgel is a registered trademark of Tosoh Corporation

Regulatory Information

新产品
This item has

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service