HPLC Column, Supelco Ascentis Express C18, , 2.7 µm, . 15 cm x 4.6 mm, 53829-U

Description

**Supelco Ascentis Express C18** – 2.7 µm particle size, 150 mm length × 4.6 mm internal diameter (Cat. No. 53829‑U)

* Column type: Reversed‑phase C18 (octadecyl) bonded phase. ([mz-at.de][1])

* Stationary phase: “Fused‑Core®” / superficially porous particle technology (solid‑core shell) which provides high efficiency but lower back pressure compared to fully porous sub‑2 µm particles. ([Krackeler Scientific][2])

* Particle size: 2.7 µm. ([Krackeler Scientific][2])

* Column dimensions: 15 cm (150 mm) length × 4.6 mm internal diameter. ([mz-at.de][1])

* Pore size: ~90 Å (for standard C18 version) with surface area ~135 m²/g. ([Sigma-Aldrich][3])

* Operating pH range: approx. 2 – 9. ([Krackeler Scientific][2])

* Max pressure/temperature: up to ~600 bar (~9,000 psi) and temperature rating ~60 °C for the standard version. ([MilliporeSigma][4])

* Suitable for HPLC, LC/MS, UHPLC‑MS use. ([Sigma-Aldrich][3])

* Column material: stainless steel housing. ([Krackeler Scientific][2])

* Application: versatile for reversed phase separations of small molecules, food & beverage, pharmaceuticals, environmental analysis. ([Sigma-Aldrich][3])

**Key benefits**

* Because of the fused‑core (superficially porous) technology, you get performance approaching sub‑2 µm columns (in terms of efficiency) but with lower system back‑pressure, making the column compatible with many conventional HPLC systems as well as UHPLC systems.

* The 4.6 mm ID gives a more standard bore compared to 2.1 mm ID columns, so it may fit broader legacy instrumentation and method interchange.

* The 15 cm length offers good resolving power while still being reasonably short for moderate run times.

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