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Grace Catalog 2008

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Bulk Chromatographic Media Introduction<br />

<strong>Grace</strong>–The Foremost Name in Silica Materials Science<br />

Davison Chemical, forerunner of the <strong>Grace</strong> Davison Silica Products business, was founded in Baltimore,<br />

Maryland in 1832. Silica gel, was patented in 1919 and in the early 1920s Davison commercialized silica gel<br />

and began developing many new applications such as air drying, refrigeration, and packaging desiccants.<br />

<strong>Grace</strong> Davison has continued to expand applications for silica and has long been recognized for superior<br />

technical service, strong applications technology, and global customer support.<br />

Quality, Consistency, and Proven Performance<br />

<strong>Grace</strong> Davison’s materials science expertise assures highquality<br />

and consistency in its silica-based media products.<br />

Our bulk adsorbents are used to purify a number of FDA<br />

approved biopharmaceuticals and we provide regulatory<br />

support data for GMP applications.<br />

All of our plants are ISO-9001 certified and<br />

our Hesperia, California plant is compliant with<br />

the IPEC-PQG GMP guidelines.<br />

Unmatched Capacity, Global Reach, Expert Support<br />

Our global presence and manufacturing capacity enables us to supply hundreds of tons of silica every year to some of the largest<br />

biotechnology and pharmaceutical manufacturing facilities. When you rely on <strong>Grace</strong>, you can count on consistent product quality,<br />

timely delivery and expert technical support.<br />

<strong>Grace</strong> Key Bulk Media Families<br />

Scalable Solutions: Silica and Hardware<br />

<strong>Grace</strong> manufactures a range of completely scalable silica<br />

media. To help select the appropriate media for your<br />

applicaiton, we describe key media families and highlight<br />

unique phases within these families. Each family highlighted<br />

is available up to ton quantities for process scale applications.<br />

<strong>Grace</strong> also provides a range of columns and skid systems<br />

from preparative to process scale that ensure optimal<br />

performance of our media (pages 162–174). Please contact<br />

your <strong>Grace</strong> sales representative to discuss a complete<br />

solution for your preparative or process scale needs.<br />

<strong>Grace</strong>Alpha<br />

A new silica generation.<br />

<strong>Grace</strong>Alpha combines increased column efficiencies<br />

and resolution with high loading capacity. A new silica<br />

(patent pending) makes this possible by combining a<br />

high-porosity surface, with a dense core, increasing<br />

mass transfer while yielding a mechanically robust<br />

particle.<br />

Applications: High purity spherical silica suitable for<br />

peptides and small molecules (2000 molecular weight)<br />

Differentiated Phases: C18, C8, C4<br />

Specifications: Spheroidal silica, polymerically and<br />

monomerically bonded, endcapped, 300Å pore size,<br />

10μm–30μm<br />

Formats: Capillary, Microbore, Expedite, Rocket,<br />

Solvent-Reducer, Analytical, Prep, Bulk Media<br />

Davisil ®<br />

Excellent mechanical and structural properties,<br />

Davisil ® silica are globally recognized for their<br />

consistency and reliability.<br />

The Davisil ® silica line offers a range of pore diameters<br />

from 30Å to 2500Å with high surface area and narrow<br />

particle size distributions to offer the chromatographer<br />

the ultimate in selection and performance.<br />

Applications: Economical granular silica for small<br />

molecules to large biomolecules<br />

prep | media<br />

Differentiated Phases: Silica, C18, Cyano, Diol, Amino<br />

Specifications: Granular silica, 30–2500Å pore sizes,<br />

10μm–2000μm particle sizes<br />

Format: Bulk Media<br />

www.discoverysciences.com<br />

175

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