ES Notes September 2011

In this issue of ESNotes we would like to share with you some of the exciting recent product introductions and enhancements including some from past ES Notes:

• ChromegaChiral CC4 a chiral stationary designed to provide separation for many unresolved or poorly resolved chiral mixtures.
• StarRiseTM C18 HPLC Columns with identical selectivity to the Waters SunFire™ C18.
• Preparative HPLC - Practical Considerations Part 1 – providing practical guidelines for developing preparative HPLC separations

All designed to be technically informative and practically useful.

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ChromegaChiral CC4 HPLC Columns

ChromegaChiral CC4 for high resolution chiral separations is a modified cellulose coated on high purity, high performance spherical silica particles. The chemical modification includes the chemical bonding of 4-chloro-3 methylphenylcarbamate to cellulose. The use of cellulose modified with chlorinated phenyl groups moiety provides for the separation for many previously unresolved/poorly resolved chiral mixtures.

Click on the link for example applications. More ....

Preparative HPLC - Practical Considerations Part 1

IT ALL STARTS WITH THE ANALYTICAL COLUMN!!! The use of an analytical column is the key step in developing any preparative HPLC separation. In order to develop and optimize a preparative HPLC separation a variety of analytical columns should be evaluated. The analytical column is essential in evaluating the chromatographic separation and developing a plan for scaling up to the preparative HPLC separation.

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StarRise™ C18 HPLC Columns

The StarRise™ line is an identical selectivity to the Waters SunFire™ C18 and C8 materials. StarRise has a long column lifetime and excellent reproducibility and produces symmetrical peaks for improved resolution and quantization of acidic neutral and basic compounds a low and intermediate pH range. StarRise columns are available in many particle sizes. Preparative bulk media is also available.

Click on the link for example applications. More ....