QUADRASORB™ SI; Surface Area and Pore Size Analyzer - QUANTACHROME INSTRUMENTS - #3

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The Quadrasorb TM SI analyzer is microprocessor controlled, and communicates with a Windows® Vista, 2000 or XP-based PC utilizing Quantachrome’s state-of-the-art, data acquisition and data reduction software, QuadraWinTM. A 21CFR Part 11 compliant software version is available for the pharmaceutical industry. State-of-the-art The QuadraWin software is powerful and user friendly. QuadraWin is superior for data reduction, incorporating the latest DFT (Density Functional Theory) models. The software guides you through analysis setup, data reduction, graphs and report printouts. During operation one can view the accumulated data, the isotherm and all associated graphs and analytical results up to that point. After a run, reports and graphs are printed automatically or you can use the software to determine the best fitting method, to compare data by overlaying curves or to adjust graph, size, scaling, titles, plot markers and line colors for best print out. Data presentation A comprehensive range of surface area and pore size methods is available: • Adsorption and desorption isotherms. • Multi- and single point BET surface area. • Langmuir surface area. • Mesopore size distributions (BJH and DH methods). • t-method by deBoer, Halsey, carbon black (STSA). • Alpha-s and MP micropore methods. • Total pore volume, and average pore size. • Dubinin-Radushkevich (DR) micropore surface area. • Horvath-Kawazoe,(HK) Dubinin-Astakhov(DA) and Saito-Foley (SF) micropore methods. • Extensive Density Functional Theory (DFT) library for unified micro- and mesopore analysis using N2, Ar and CO2. • Fractal dimension by Frenkel-Halsey-Hill(FHH) or Neimark-Kiselev (NK) models. Transparent blue cover protects sample stations and Dewars during analysis operation. Opens vertically for easy access to analysis stations Lower front panel opens to provide unrestricted access for Dewar placement, maintenance and clean-up Up to four sample stations, each with coolant level sensor and Po cell Automated, independent dewar elevators Communication port for PC control via Windows®-based software 0.1% span (1000 torr transducer) each manifold/sample station 0.15% reading (10 torr transducer - optional) manifold 0.016 torr (1000 torr range) 0.00016 torr (10 torr range) <1x10-2 torr achieved by dedicated 2 stage rotary, direct drive pump 1x10-9 torr achieved by turbo-molecular vacuum pump in QUADRASORB SI - KR/MP Nitrogen or any other non-corrosive gas with appropriate coolant 0.01m2/g to no known upper limit (nitrogen) 0.0005 m2/g to no known upper limit (krypton)KR/MPmodel only 2x10-6 cc/g 0.0001cc/g 3.5 - 4000Å / 0.35 - 400 nm Automatic compensation by RTD coolant level sensor 1 x 10-3 QUADRASORB SI 4 x 10-5 QUADRASORB SI -KR/MP Transducer Accuracy: Pressure Resolution: Ultimate Vacuum: Adsorbate: Surface Area Range: Minimum Pore Volume (liquid): (STP): Pore Size Range: Coolant Level: Minimum P/P0 (N2): Analysis Specifications * Pressure transducer and vacuum pump specifications from their respective manufacturers. QuadraWin TM- Software Multiple graphs show isotherm and related plots QUADRASORB™ SI