Particulate Systems HPVA100/200 Series gas adsorption analysers

Monday, 17 October, 2011 | Supplied by: Particle & Surface Sciences Pty Ltd


The HPVA100/HPVA200 series gas adsorption analysers from Particulate Systems (a Micromeritics Brand) are designed to obtain high-pressure adsorption isotherms using gases such as hydrogen, methane and carbon dioxide using the static volumetric method.

The volumetric technique consists of introducing (dosing) a known amount of gas (adsorptive) into the chamber containing the sample to be analysed. When the sample reaches equilibrium with the adsorbate gas, the final equilibrium pressure is recorded. The data is then used to calculate the quantity of gas adsorbed by the sample. This process is repeated at given pressure intervals until the maximum preselected pressure is reached. Each of the resulting equilibrium points (volume adsorbed and equilibrium pressure) is then plotted to provide an isotherm.

Good reproducibility and accuracy are obtained by using separate transducers for dosing the sample and for monitoring the pressure in the sample chamber.

Features include: pressure ranges from vacuum to 200 bar; temperatures from cryogenic to 500°C; good control of sample temperature by means of a constant temperature bath; fully automated analysis and sample evacuation; good data reproducibility; handles typical adsorbates such as nitrogen, hydrogen, methane, argon, oxygen, carbon monoxide and carbon dioxide; comprehensive data analysis package using Microsoft Excel macros for data processing and graphing; software includes NIST RefProp Database 23; and solid-state pressure transducers with silicon element mounted to a Hastelloy isolation diaphragm with a high-integrity, glass-to-metal seal.

Online: www.pss.aus.net
Phone: 02 4323 7822
Related Products

CoolLED pE-300white LED illumination system for fluorescence microscopy

The system delivers powerful, broad-spectrum LED illumination designed for fluorescence...

BUCHI ProxiMate and ProxiScout NIR systems

ProxiMate is an at-line NIR instrument specifically designed for the food and feed industry,...

LICORbio Atlas for 2D and 3D cell imaging

Designed for both 2D and 3D assays, the product delivers high-content, high-throughput imaging in...


  • All content Copyright © 2025 Westwick-Farrow Pty Ltd