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TABLE OF CONTENTS - BGB Analytik AG

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ZORBAX Reversed-Phase Columns<br />

The following table summarizes the unique bonding chemistry of ZORBAX RP-HPLC columns.<br />

Each is designed for long column lifetime and resolution that lasts in their optimal pH range.<br />

ZORBAX RP-HPLC Column Chemistry<br />

Modern<br />

ZORBAX<br />

Columns* Silica Type<br />

Eclipse Plus B Totally<br />

porous<br />

Poroshell SB B Superficially<br />

porous<br />

Poroshell EC B Superficially<br />

porous<br />

Eclipse XDB B Totally<br />

porous<br />

StableBond B Totally<br />

porous<br />

Rx-C18 B Totally<br />

porous<br />

Bonus-RP B Totally<br />

porous<br />

Extend-C18 B Totally<br />

porous<br />

Original ZORBAX Columns**<br />

ZORBAX A Totally<br />

porous<br />

ZORBAX<br />

ODS Classic<br />

A Totally<br />

porous<br />

www.agilent.com/chem/supplies<br />

ZORBAX Reversed-Phase Columns<br />

Particle<br />

Side Group<br />

Structure<br />

Type Endcapping on Silane Polar Group Page No.<br />

Double Dimethyl None 590<br />

None Diisobutyl None 589, 637<br />

Double Dimethyl None 589, 637<br />

Double Dimethyl None 596<br />

None Diisopropyl<br />

(C8, C3,<br />

CN, phenyl),<br />

diisobutyl<br />

(C18)<br />

None 604<br />

None Dimethyl None 622<br />

Triple Diisopropyl Amide 612<br />

Double Unique<br />

bidentate<br />

structure<br />

None 617<br />

Single Dimethyl None 624<br />

None Dimethyl None 624<br />

*Type B silica: low acidity, low metal content; these bonded phases use ZORBAX Rx-SIL<br />

**Type A silica: more acidic, higher metal content; these bonded phases used ZORBAX SIL<br />

LC and LC/MS<br />

587

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