Shim-pack Arata LC Columns

Shim-pack Arata LC ColumnsUnprecedented Resolution and Peak Shape for High pH Compounds

Even for LC columns that claim to be designed for basic compounds, adequate resolution often cannot be obtained due to problems such as leading of highly polar basic compounds, peak shape deterioration of acidic compounds, or long equilibration time required for low ionic strength acidic mobile phase. All of these issues have been solved with Shim-pack Arata that was specifically designed to give unmatched peak shape for high pH compounds.

Shim-pack Arata - analysis of amitriptyline and benzoic acid

Shim-pack Arata - analysis of amitriptyline and benzoic acid with the mobile phase with 0.1% formic acid

Unmatched Peak Shape

Unmatched peak shape of basic compounds could be achieved while maintaining good peak shape for acidic compounds using the Shim-pack Arata LC column. Even when low ionic strength acidic mobile phase, such as 0.1% formic acid containing mobile phase are used, excellent peak shape of both amitriptyline (a basic compound) and benzoic acid (an acidic compound) could be achieved.

 

Excellent Separation Performance for Peptides Even with Weak Ion Paring Acids

In order to obtain good peak shape of peptides under reversed phase chromatography, TFA containing mobile phases are frequently used which the ion pairing effect is relatively strong. However, TFA could cause ion suppression in LC/MS analysis. Excellent peak shape and separation performance for peptides can be achieved using the Shim-pack Arata LC column even with 0.1 % formic acid containing mobile phase.

Shim-pack Arata - Analysis of Angiotensin Using Isocratic Mobile Phase with 0.1% Formic Acid (Shim-pack Arata C18 vs. Typical ODS)

Shim-pack Arata - Analysis of Angiotensin Using Isocratic Mobile Phase with 0.1% Formic Acid (Shim-pack Arata C18 vs. Typical ODS)

Rapid Equilibration Even with Low Ionic Strength Acidic Mobile Phases

When analyzing basic compounds on a typical ODS column with low ionic strength acidic mobile phase, peak shape and long equilibration times are common problems. Shim-pack Arata LC columns can be rapidly equilibrated in low ionic strength acidic mobile phases yielding excellent peak shape and stable retention times.

Shim-pack Arata -C18 vs Typical ODS Column

 

Ordering Information

 
(Click on the part number below to be transferred to our web store where you can purchase the column) 
 
 
Particle Size (µm) Length (mm) 2.0 3.0 4.6
2.2 µm 50 227-32801-01 227-32802-01  
75 227-32801-02 227-32802-02  
100 227-32801-03 227-32802-03  
150 227-32801-04 227-32802-04  
5 µm 50 Coming Soon Coming Soon Coming Soon
75 Coming Soon Coming Soon Coming Soon
100 Coming Soon Coming Soon Coming Soon
150 Coming Soon Coming Soon Coming Soon
250     Coming Soon

Click here for pricing and ordering information 

For Research Use Only. Not for use in diagnostic procedures.

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