58236

SUPELCOSIL^™ LC-Si HPLC Column

5 μm particle size, L × I.D. 5 cm × 4.6 mm

• Codice UNSPSC: 41115700
• eCl@ss: 32110501

Proprietà

• agenzia: suitable for USP L3
• Livello qualitativo: 100
• Produttore/marchio commerciale: SUPELCOSIL^™
• Parametri: ≤70 °C temp. limit; 400 bar pressure (5801 psi)
• tecniche: HPLC: suitable
• Lungh. × D.I.: 5 cm × 4.6 mm
• Area superficiale: 170 m²/g
• Matrice: silica gel, spherical particle platform
• Gruppo funzionale matrice: silica phase
• Dimensione particelle: 5 μm
• Dimensione pori: 120 Å pore size
• Intervallo di pH: 2-7.5
• applicazioni: food and beverages
• Compatibilità: mode of use normal phase HPLC
• Tecnica di separazione: hydrophilic interaction (HILIC); normal phase

Descrizione

Descrizione generale

A typical mobile phase used with normal-phase silica columns consists of a hydrocarbon solvent such as hexane or heptane, mixed with a relatively small percentage of more polar solvent. Non-polar compounds will elute from the column first, while polar solutes show stronger interaction with the silanol groups on the silica surface. The polar selectivity of silica is very helpful for separating mycotoxins. Silica is frequently used in preparative chromatography due to its low operating cost and back pressure compared to reversed-phase columns. Silica is particularly popular among organic chemists as a low-pressure preparative tool. The unmodified silica in SUPELCOSIL LC-Si columns also separate positional isomers.

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Note legali

SUPELCOSIL is a trademark of Sigma-Aldrich Co. LLC