Sigma-Aldrich Purospher(R) Star RP-18 En

Material

stainless steel column

Quality Level

100

Agency

suitable for USP L1

Product Line

Purospher^®

Feature

endcapped

Packaging

1 ea of

Extent Of Labeling

17% Carbon loading

Parameter

250 bar pressure
65 °C max. temp.

Technique(S)

HPLC: suitable
LC/MS: suitable
mass spectrometry (MS): suitable (High)

Column L × I.D.

25 cm × 2 mm

Related Categories

HPLC Columns

General Description

Purospher® STAR RP-18 endcapped, 5 µM HPLC columns are designed for universal use and allow the separation of basic, neutral, and metal chelating compounds with simple mobile phases and excellent peak symmetry. They are based on ultra-pure fully porous silica particles (Type B).
These columns offer an outstanding stability from pH 1.5 to 10.5 over a wide temperature range, and suitability for up to 100% aqueous mobile phases. Plus, they demonstrate best all-round retention characteristics, as proven by the Tanaka test.

Purospher^®STAR RP-18 endcapped, 5 µM LiChroCART^®250-2 is a cartridge column which requires a manuCART^™cartridge column holder part number 1.51486.0001. The manuCART^™can be used to hold one cartridge column with or without direct integration of a guard column.
LiChroCART^®cartridge columns mounted with a manuCART^™cartridge column holder are hand-tight only and have therefore a maximum pressure stability of 250 bar.
For higher pressure stability requirements Purospher^®STAR RP-18 endcapped, 5 µM Hibar^®RT 250-2 HPLC columns are available part number 1.50598.0001.
For use under UHPLC conditions (where a pressure stability up to 1000 bar is required) it is recommended to use a Purospher^®STAR RP-18 endcapped, 3 µM Hibar^®HR 250-2.1 UHPLC Column part number 1.50655.0001
The column dimension of 250 mm length x 2 mm I.D. is the optimal choice for HPLC separation of complex samples at lower flow rate, allowing significant solvent savings and improved sensitivity

Learn more about Purospher® STAR HPLC and UHPLC Columns

Learn more about the Supelco HPLC Column portfolio and Method development:
Brochure: HPLC and UHPLC Column Selection Guide
Brochure: A Practical Guide to HPLC - Method Development Guide

Application

Intended to be used in the separation of aflatoxins, aldehydes, alkaloids, antibiotics, catecholamines, explosives, oligonucleotides, esters, fat soluble vitamins, lipids, fatty acids, flavonoids, ketones, nitrosamines, nucleosides, PAHs, PCBs, peptides, pesticides, phenols, phthalates, preservatives, steroids, metabolized steroids, sulfonamides, sweeteners, and water soluble vitamins.

Features And Benefits

• Ultra-pure silica (99.999%) for excellent peak symmetry
• High separation efficiency
• Reproducible results from run-to-run and batch-to-batch
• Best all-round performance according to Tanaka
• Outstanding pH stability from pH 1.5 to 10.5
• No phase collapse when using highly aqueous mobile phases
• Good suitability for LC-MS applications

Analysis Note

Pressure: ≤ 130 bar
Theoretical Plates (N/M) (hexylbenzene): ≥ 70000
Symmetry (hexylbenzene): 0.8 - 1.4
Capacity factor (hexylbenzene): ≥ 8.0Hibar is a registered trademark of Merck KGaA, Darmstadt, GermanyLICHROCART is a registered trademark of Merck KGaA, Darmstadt, GermanyMANUCART is a trademark of Merck KGaA, Darmstadt, GermanyPurospher is a registered trademark of Merck KGaA, Darmstadt, Germany