ASAP 2460 – Surface Area and Porositiy Analyzer

Micromeritics

Analytical Versatility with Superior Throughput

The ASAP 2460 Surface Area and Porosity Analyzer incorporates a unique expandable system designed for high-performance and high sample throughput. The base ASAP 2460 is a two-port master control unit. For more throughput, additional two-port units can be connected to the master unit expanding the system to either a four-port or six-port analyzer. The instrument also includes intuitive MicroActive software that combines user-defined reports with the ability to interactively evaluate isotherm data.

Features

  • All analysis ports can be operated independently and concurrently, allowing the user to load and unload samples at any time, regardless of the analysis stage. A new analysis can begin as soon as another is finished
  • An analysis in excess of 60 hours can be performed without refilling the dewar. This allows unattended analysis of high resolution adsorption/desorption isotherms that take much longer to complete because the system must equilibrate at each data point
  • With a master unit and two auxiliary units, BET surface area analyses utilizing six parallel runs can be achieved in as little as 30 minutes
  • Servo control for dosing and evacuation provides a higher degree of gas management and speeds collection of data points through reduction of dosing overshoot
  • Up to five different nonreactive adsorptives, plus helium for free space, can be attached to the analyzer simultaneously. Each analysis port can accept a range of sample tube sizes
  • Long-duration dewars and isothermal jackets assure a stable thermal profile along the length of both the sample and saturation pressure (P0) tubes throughout lengthy analyses. The P0 value can be entered, or measured either continuously or at selected intervals
  • Intuitive MicroActive software combines user defined reports with the ability to interactively evaluate isotherm data, reducing the time required to obtain surface area and porosity results. User selectable data ranges through the graphic interface allow direct modeling for BET, t-plot, Langmuir, DFT interpretation, and new advanced NLDFT methods
  • An innovative dashboard monitors and provides convenient access to real-time instrument performance indicators and maintenance scheduling

Low Surface Area Measurement (Krypton) and Dedicated Micropore Options

Low surface area (Krypton) model includes the addition of a 10-mm Hg transducer and permits accurate measurement of very low surface area on materials such as API (active pharmaceutical ingredient), powdered metals, etc.

The micropore model includes the addition of a 1-mm Hg transducer which extends the low pressure measurement capabilities and allows enhanced performance for characterizing microporous materials using nitrogen, argon, carbon dioxide, hydrogen, and other fixed gases. The transducer also increases pressure resolution in the range necessary for micropore analysis.

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  1. ASAP 2460 Applications
    • Pharmaceuticals – Surface area and porosity play major roles in the purification, processing, blending, tableting, and packaging of pharmaceutical products as well as their useful shelf life, dissolution rate, and bio-availability
    • Ceramics – Surface area and porosity affect the curing and bonding of greenware and influence strength, texture, appearance, and density of finished goods. The surface area of glazes and glass frits affects shrinkage, crazing, and crawling
    • Adsorbents – Knowledge of surface area, total pore volume, and pore size distribution is important for quality control of industrial adsorbents and in the development of separation processes. Surface area and porosity characteristics affect the selectivity of an adsorbent
    • Activated Carbons – Surface area and porosity must be optimized within narrow ranges to accomplish gasoline vapor recovery in automobiles, solvent recovery in painting operations, or pollution controls in wastewater management
    • Carbon Black – The wear lifetime, traction, and performance of tires are related to the surface area of carbon blacks used in their production
    • Fuel Cells – Fuel cell electrodes require high surface area with controlled porosity to produce optimum power density
    • Catalyst – The active surface area and pore structure of catalysts influence production rates. Limiting the pore size allows only molecules of desired sizes to enter and exit, creating a selective catalyst that will produce primarily the desired product
    • Paints and Coatings – The surface area of a pigment or filler influences the gloss, texture, color, color saturation, brightness,solids content, and film adhesion properties. The porosity of a print media coating is important in offset printing where it affects blistering, ink receptivity, and ink holdout
    • Projectile Propellant – The burn rate of propellants is a function of surface area Too high a rate can be dangerous; too low a rate can cause malfunction and inaccuracy
    • Medical Implants – Controlling the porosity of artificial bone allows it to imitate real bone that the body will accept and allow tissue to be grown around it
    • Electronics – By selecting high surface area material with carefully designed pore networks, manufacturers of super-capacitors can minimize the use of costly raw materials while providing more exposed surface area for storage of charge
    • Cosmetics – Surface area is often used by cosmetic manufacturers as a predictor of particle size when agglomeration tendencies of the fine powders make analysis with a particle-sizing instrument difficult
    • Aerospace – Surface area and porosity of heat shields and insulating materials affect weight and function
    • Geoscience – Porosity is important in groundwater hydrology and petroleum exploration because it relates to the quantity of fluid that a structure can contain as well as how much effort will be required to extract it
    • Nanotubes– Nanotube surface area and microporosity are used to predict the capacity of a material to store hydrogen
  1. Benefits
    • Fully automated modular system optimized for walk-up sample screening
    • High throughput with two, four, or six independent analysis stations
    • BET surface area measurements in as little as 30 minutes
    • Dosing options of maximum volume increment or dosing over specified pressure ranges
    • Analysis temperature can be entered, calculated, or measured
    • Equilibration option allows user to specify equilibration times for different parts of the isotherm
    • Low surface area and micropore options
    • Innovative MicroActive software with advanced NLDFT modeling
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