Union, Column Coupler, universal fit 0.13 mm through hole 0.005 inch (0.13 mm) ID tubing. Color coded red. PEEK. ARE-Applied Research brand. 1 EA.
Additional Info:
The 47450‑01 Column Union (Universal Fit) is a precision HPLC column coupler designed to connect two analytical columns or a guard column and analytical column in series without introducing excessive dead volume. This fitting is optimized for 0.005 in (0.13 mm) ID tubing, making it ideal for analytical HPLC and UHPLC systems where efficiency and peak integrity are critical.
The fluid path is entirely PEEK, manufactured from Ultra‑T™ PEEK tubing to provide excellent concentricity, chemical compatibility, and mechanical stability. This construction helps maintain laminar flow through the connection and minimizes dispersion between columns.
A red polypropylene sleeve is used to color‑code the internal diameter, allowing quick visual confirmation of tubing size during installation and maintenance—an important UX feature in busy laboratory environments.
Key Features
Precision Column‑to‑Column Connection
Joins two HPLC columns directly
Ideal for guard column → analytical column configurations
Universal fit simplifies method setup and changes
Ultra‑Low Dead Volume Flow Path
0.005 in (0.13 mm) through‑hole matched to analytical tubing
Minimizes extra‑column band broadening
Supports high‑efficiency chromatographic separations
All‑PEEK Fluid Path
Manufactured entirely from PEEK (polyether ether ketone)
Uses Ultra‑T™ tubing for improved concentricity
Compatible with aggressive mobile phases
Metal‑free construction avoids corrosion and analyte interaction
Color‑Coded Identification
Red polypropylene sleeve identifies 0.005 in ID
Speeds installation and reduces setup errors
Improves lab organization and workflow clarity
Why Use a Dedicated Column Union?
Proper column‑to‑column connections are critical in chromatography. Improvised fittings or mismatched IDs can introduce dead volume, compromise resolution, and reduce reproducibility. The 47450‑01 column union provides a controlled, low‑volume connection that helps preserve column performance—especially important in gradient HPLC and LC‑MS workflows.
Typical Applications
Connecting guard columns to analytical columns
Series coupling of two HPLC columns
Method development and column switching
Analytical HPLC and UHPLC systems
Metal‑free chromatography workflows