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EXP® Trap Columns

Name: EXP® Trap Columns
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The patent-pending EXP® Trap Column is rated for use at 20,000+ psi (1,400+ bar). This unique design connects directly to any injection valve (with 10-32 threads) or in-line with 1/16” stainless tubing for unparalleled convenience and efficiency. The EXP® Cartridge System enables chemists to quickly remove detergents or salts which can affect the ionization process in MS work. This trapping technique can concentrate the sampl…

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The patent-pending EXP® Trap Column is rated for use at 20,000+ psi (1,400+ bar). This unique design connects directly to any injection valve (with 10-32 threads) or in-line with 1/16” stainless tubing for unparalleled convenience and efficiency. The EXP® Cartridge System enables chemists to quickly remove detergents or salts which can affect the ionization process in MS work. This trapping technique can concentrate the sample directly on-line, allowing for increased recovery of precious sample material compared to off-line techniques. On-line trapping readily lends itself to automation for high-throughput analysis in UHPLC/MS applications. Free-Turn® architecture allows the user to change cartridges by hand without breaking fluid connections on the holder inlet/outlet.

Key Features:

Includes 3 uni-directional cartridges
Rated to 20,000+ psi (1,400+ bar)
Bed volumes from 4 µL to 100 µL
Convenient means of handling a variety of sample clean-up and enrichment processes
More efficient than off-line trapping techniques
Hand-tight trap replacement - NO TOOLS!
Custom packing available
Holder can be used with EXP® Trap and Guard Cartridges
Fittings included with holder

Application NoteSeparations

Optimize trapping guide

Trapping is a valuable technique for sample clean-up, purification, pre-concentration, desalting, and detergent removal. This comprehensive guide to trapping from Optimize Technologies, aims to help you select the best options for your LC and LC/MS applications.

2 Oct 2025

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EXP® Trap Columns

Optimize Technologies, Inc.

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