1.50248

Purospher^® STAR NH2 (5 µm) HPLC Columns

L × I.D. 250 mm x 4.6 mm LiChroCART^™ HPLC cartridge, manuCART^™ holder required for use

• Sinónimos: Purospher^® STAR NH2 (5 µm) LiChroCART^™ 250-4.6
• Código UNSPSC: 41115709
• NACRES: SB.52

Propiedades

• product name: Purospher^® STAR NH2 (5 µm), L × I.D. 250 mm x 4.6 mm LiChroCART^™ HPLC cartridge, manuCART^™ holder required for use
• Materiales: stainless steel column
• Nivel de calidad: 100
• Agency: suitable for USP L8
• Línea del producto: Purospher^®
• Características: endcapped: no
• envase: 1 ea of
• Extensión del etiquetado: 3.5% Carbon loading
• Parámetros: 250 bar pressure; 60 °C max. temp.
• técnicas: HPLC: suitable; LC/MS: suitable; mass spectrometry (MS): suitable (Low - Medium)
• columna L × D.I.: 25 cm × 4.6 mm
• superficie: 330 m²/g
• matriz: fully porous particle
• grupo activo de la matriz: NH₂ bonding phase
• tamaño de partícula: 5 μm
• tamaño de poro: 120 Å pore size
• operating pH range: 2-7.5
• técnica de separación: hydrophilic interaction (HILIC); normal phase; reversed phase
• temp. de almacenamiento: no temp limit

Descripción

Descripción general

Purospher^® STAR NH2, 5 µm HPLC columns are widely used for carbohydrate analysis, with a typical mobile phase consisting of acetonitrile and water. In terms of their polarity, these columns lie between bare silica and reversed-phase silica. Hence, Purospher^® STAR NH2 can also be used as an ion-exchanger. In acidic solutions, the NH2-groups are protonated (-NH3 +X-) and therefore display the characteristics of a weak anion exchanger. Medium polarity Purospher^® STAR NH2 columns possess hydrophilic as well as hydrophobic properties, thus can be used under both reversed-phase (HILIC) and normal-phase conditions. However, retention is weaker than on silica or RP-supports. Purospher^® STAR NH2 columns are based on ultra-pure fully porous silica particles (Type B). Purospher^® STAR NH2, 5 µm LiChroCART^™ 250-4.6 is a cartridge column which requires a manuCART^™ cartridge column holder part number 1.51486.0001.The recommended guard column is Purospher^® STAR NH2 (5 µm) LiChroCART^™ 4-4 part number 1.50267.0001. LiChroCART^™ cartridge columns mounted with a manuCART^™ cartridge column holder is hand-tight only and have therefore a maximum pressure stability of 250 bar. For higher pressure stability requirements Purospher^® STAR NH2, 5 µm Hibar^® RT 250-4.6 HPLC columns are available part number 1.51913.0001.The column dimension of 250 mm length x 4.6 mm I.D. is the optimal choice for the HPLC separation of complex.Learn more about Purospher^® STAR HPLC and UHPLC ColumnsLearn more about the Supelco HPLC Column portfolio and Method development:Brochure: HPLC and UHPLC Column Selection GuideBrochure: A Practical Guide to HPLC - Method Development Guide

Aplicación

Intended to be used in the separation of alcohols,carboxylic acids, fat soluble vitamins, nucleotides, steroids, sugars, sugar alcohols, sweeteners, and water soluble vitamins.

Características y beneficios

• Ultra-pure silica (99.999%)
• Low silanol activity
• Reproducible results from run-to-run and batch-to-batch

Nota de análisis

Pressure: ≤ 60 bar
Theoretical Plates (N/m) (2-Nitrotoluene): ≥ 50000
Symmetry (2-Nitrotoluene): 0.8 - 1.4
Capacity factor (2-Nitrotoluene): ≤ 3.0

Información legal

Hibar is a registered trademark of Merck KGaA, Darmstadt, Germany

LICHROCART is a trademark of Merck KGaA, Darmstadt, Germany

MANUCART is a trademark of Merck KGaA, Darmstadt, Germany

Purospher is a registered trademark of Merck KGaA, Darmstadt, Germany

Información de seguridad

• Código de clase de almacenamiento: 11 - Combustible Solids