720019.4

NUCLEOSIL® standard silica phases for HPLC

Features

• NUCLEOSIL® is a family of totally porous spherical silicas with a very pure and uniform SiO2 structure
• Wide acceptance as routine packings for very different fields of chromatography
• One of the first spherical silicas used in HPLC
• Developed in the early seventies, it became a world-renowned HPLC packing
• Still found in many analytical and preparative applications
• An absolutely reliable choice in HPLC
• The largest variety of modified HPLC silicas available on the market

NUCLEOSIL® C6H5
Phenyl modified silica phases for HPLC
not endcapped · 8 % C · USP L11

Features

• Relatively nonpolar phases for RP and ion pairing chromatography
• Available pore sizes 100, 120, 300, 500 and 1000 Å, available particle sizes 5 µm and 7 µm,                                                                      pH stability at 20 °C: 2–8; carbon content 8 %
• Polarity similar to C8, but with different selectivity for polycyclic aromatic hydrocarbons, polar aromatics, fatty acids etc.
• Separation mechanism based on π–π interactions and hydrophobic (van der Waals) interactions, some residual silanol interactions