The Acclaim 120 columns are designed for high resolution reversed-phase separations. The very high surface coverage and very low metal content together result in columns with excellent efficiencies. These columns provide exceptional performance for a variety of applications in the pharmaceutical, chemical,environmental, and food separations areas. ? Ultrapure silica with high-density bonding for low silanol activity ? Very high efficiencies for maximum resolution ? Reproducible manufacturing practices for reproducible column-to-column performance ? LC/MS compatible Acclaim 120 C18 columns have high surface coverage, resulting in high-capacity columns. They are stable between pH 2 and 8 and available in 3 and 5 μm particles sizes, and 4.6, 3.0, and 2.1 mm-diameters, with an average pore diameter of 120 ?. All phases are LC/MS compatible because of the low silica bleed that results from the stable bonding procedure. These columns are also available for fast LC; please see the Acclaim Rapid Separation LC section. Acclaim 120 Silica-Based Reversed-Phase Columns for Small Molecule Analysis Specifications Particle shape Spherical Particle size distribution (40/90) 1.2 Total carbon content C18: 18% C8: 11.2% Carbon surface coverage C18: 3.2 mmol/m2 C8: 3.7 mmol/m2 Pore volume 0.9 mL/g Average pore diameter 120 ? Surface area 300 m2/g pH Range 2–8 Temperature <60 °C End-capped Yes Metal impurity (Na, Fe, Al) <10.0 ppm Total Metal <3.0 ppm Individual Metal USP listing C18: L1 C8: L7 Starting material Ultrapure silica Particle size 3, 5 μ

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注：* 為保護(hù)柱芯，2/pk，需配保護(hù)柱套，貨號(hào)為069580，￥。