24919
Purge/Trap J BTEXTRAP™
for use with Tekmar® 3000, 3100 (Straight, 12 in./30.5 cm, Valco fitting
Synonym(s):
PURGE TRAP J, Tekmar® 3000
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About This Item
UNSPSC Code:
41115700
Recommended Products
application(s)
environmental
Quality Level
compatibility
for use with Tekmar® 3000, 3100 (Straight, 12 in./30.5 cm, Valco fitting
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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.
Legal Information
BTEXTRAP is a trademark of Sigma-Aldrich Co. LLC
Tekmar is a registered trademark of Tekmar Co.
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
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