MilliporeSigma
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24938

Supelco

Purge/Trap I Vocarb® 4000

for use with OI Analytical Eclipse 4660, 4560

Synonym(s):
PURGE TRAP I, O.I. ANALYTICAL 4560

Quality Level

application(s)

environmental

compatibility

for use with OI Analytical Eclipse 4660, 4560

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General description

Tubes used in purge and trap analyses generally are packed with multiple beds of adsorbent materials, so that a broad range of polar and nonpolar, high and low molecular weight compounds can be trapped in a single tube. Each bed protects the next, increasingly active bed, by preventing compounds from being held so strongly that they cannot be desorbed quickly without decomposition. During the purge phase of sampling, lower molecular weight compounds pass through the initial adsorbent beds but are trapped by succeeding beds. During desorption, the carrier gas passes through the trap in the reverse direction of purge flow, so that higher molecular weight compounds never come in contact with the stronger (innermost) adsorbents.

Application

Purge/Trap I Vocarb® 4000 may be used as a purge and trap system in the gas chromatographic analysis of volatile organic compounds.

Legal Information

Vocarb is a registered trademark of Siemens Industry, Inc.

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

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Certificate of Origin

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