QUADRASORB™ SI; Surface Area and Pore Size Analyzer - QUANTACHROME INSTRUMENTS - #2

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QUADRASORB™ SI QUADRASORB™ SI for standard applications • Fully automated, multi-sample port analyzer for surface area, pore volume and pore size measurements. Available with four, three or two sample stations. • Each of the analysis ports includes separate and independent Dewar (coolant flask), 1000 torr pressure sensor and Po (adsorbate saturated vapor pressure) measurement station for simultaneous measurements yielding maximum throughput and flexibility. • Each of the analysis ports includes RTD coolant level sensor to maintain a constant, small cold-zone for maximum sensitivity. Long life Dewar flasks for measurements exceeding 30 hours. • Each analysis port can be independently programmed with different analyses and measurement conditions and new samples can be started on each port as prior measurements are completed with little, or no, delay to other samples already in progress. • Choose from two measurement techniques: Patented NOVA helium-free method and classical helium void-volume method. Designed for analyses using many different gases, including nitrogen, argon, carbon dioxide, krypton, etc. • Multiple gas dosing methods to optimize analysis time and resolution: 1. MaxiDose™ automatically adjusts dose size in response to sample demand; 2. Constant Dose Volume (0.1 - 10 cc per data point); and 3. Delta Volume™ which adds data points in regions of large uptake so critical pore filling is never missed. • Low maintenance, vacuum-volumetric system with temperature monitored dosing manifold. High vacuum/low pressure version available (see below). • Windows®-based QuadraWin™ software provides for instrument control and a comprehensive range of classical and modern models for reporting surface area and pore size. • Wide range of separately supplied sample preparation devices (Degassers) to meet the need of any laboratory (See page 4). Krypton/Micropore option for low surface area and micropore measurements • All of the functions of the standard model QUADRASORB SI; includes low pressure (10 torr) sensor and turbo-molecular vacuum pump. Available with optional oil-free roughing pump. • Performs krypton gas sorption measurements for very low surface area determination, eg. pharmaceutical actives, powdered metals, etc. on any or all samples stations. • Capable of low pressure adsorption data (as low as 4 x 10-5 P/Po) necessary for more complete characterization of microporous materials, eg. zeolites, activated carbons, molecular sieves, etc. Quantachrome's QUADRASORB SI Surface Area and Pore Size Analyzer is designed to satisfy busy laboratory needs for high analytical throughput , without sacrificing precision, flexibility or cost-effectiveness. Up to four simultaneous and independent (SI) analysis ports remove the limitations of single dewar systems allowing samples to be started as soon as previous measurements are completed. This measurement flexibility has never before been available in such a compact and cost-effective package.