Micromeritics has introduced the ASAP 2020 HD accelerated surface area and porosimetry system, with features that offer improved isotherm resolution and accuracy.
Current ASAP 2020 users can upgrade their instrument to the new HD standard.
Wider pressure measurement capabilities for the ASAP 2020 HD allow isotherm measurements to start an order of magnitude lower in pressure than previous ASAP instruments.
This low-pressure capability provides more resolution and new options for materials with micropores, such as metal organic frameworks, activated carbons, and zeolites.
Extending the pressure range reduces the isotherm variations often observed with adsorptives such as nitrogen.
The Hi-AC technology will benefit all users whose characterisation needs require precision and the use of a variety of adsorptives (probe molecules).
These calculations combine the use of existing Micromeritics technology with real gas properties of the adsorptive.
Hi-AC features the precision fluid properties developed by the National Institute of Standards and Technology combined with rigorous free-space control, the real gas equation of state, and compensation for the dynamic void space.
The ASAP 2020 HD commercial gas adsorption analyser also includes a large library of adsorptive properties.
The adsorptive properties library allows users to conveniently select new probe molecules without the worries or difficulties of finding fluid property data.
The adsorptive properties library provides the Hi-AC method all fundamental fluid properties in high resolution.
The user also has the convenience of high resolution with the click of a button.
Micromeritics recently introduced a series of next-generation finite NLDFT models.
The current Micromeritics library includes more than 20 DFT/NLDFT models for textural analysis that cover a range of materials, geometries and adsorptives.
Micromeritics instrument users can select a model that best describes their material.
The ASAP 2020 HD now provides new low-pressure desorption capabilities.
Low-pressure desorption analysis will be beneficial to material scientists who synthesise materials that exhibit adsorbed phase changes during desorption.
Metal organic frameworks and small pore zeolites often exhibit low-pressure hysteresis during desorption.
The low-pressure desorption analysis will provide more resolution for these materials that 'breathe'.
The ASAP 2020 HD upgrades the chemisorption option with proprietary temperature control.
Analytical instruments often require rapid and precise temperature control beyond what is available with common PID controllers.
The ASAP 2020 HD includes Micromeritics temperature control algorithms.
This temperature control provides benefits across the entire temperature range on the ASAP 2020 HD, the largest benefit being improved precision near ambient temperature where it is often the most difficult to control temperature.
