Home » Meritics » Measuring Surface area is quick and easy with the Acorn AreA

Measuring Surface area is quick and easy with the Acorn AreA


Measuring Surface area is quick and easy with the Acorn AreA

Measuring Surface Area and Pore Size

Surface Area And Pore Size

The Thermo Scientific Surfer represents the ultimate development in terms of the characterization of solids and powders, measuring surface area and pore size.

The Thermo Scientific Surfer applies the static volumetric method to determine, at cryogenic temperatures, the quantitative interaction of gases with the free surface of solids and powders. Surfer has been designed to meet the most demanding requirements in terms of precision, reproducibility and speed of analysis.

Thanks to its greatly reduced dead volumes, high precision control of the cryogenic liquid level and special algorithm for pressure measurement linearization, Surfer requires only half the sample amount that is typically needed by existing gas adsorption techniques, thus reducing the required analysis time. This is particularly useful with samples that under existing methods take more than a day to test!

Customization and modularity are important benefits of the Thermo Scientific Surfer, enabling the analyst to obtain the best results in terms of measuring surface area and pore size for any kind of material, from extremely low surface areas (non-porous) to very high surface areas and large pore volumes (e.g. the case of micro and mesopore samples).

Surfer can be configured and customized easily on demand also according to the available budget, choosing from a wide range of vacuum pumps, pressure gauges, valve types, etc. The system can be easily upgraded at any time.

Acorn AreA


For the first time there is now a quick and easy way to measure surface area of particles in suspension, emulsions and colloids. The Acorn AreA uses NMR to measure the surface area of a wide range of particles in suspensions.

Liquid molecules in free solution have a different NMR relaxation time to those which are attached to the particle surface, the AreA measure the difference and calculates surface area . The technique makes no assumption about particle size or shape and does not require lengthy sample preparation and can measure most samples without the need for dilution. It is compact, easy to use and provides surface area measurements in less than 5 minutes.

PASCALL Mercury Intrusion Porosimeter

mercury porosimeter

The mercury porosimetry technique is one of the most useful methods to investigate the porous structure of solid samples in a quantitative way. It provides reliable information about pore size/volume distribution, particle size distribution, bulk (envelope) density and specific surface for most porous solids.

Pressurization by Automatic Speed-up and Continuous Adjustment Logic, or, in short Pascal, is a special operating principle developed by Thermo Fisher Scientific and used in the new generation of automatic mercury porosimeters the Pascal Range, which reduces run times by up to 30%. Providing fast automated measurements with selectable intrusion/extrusion speed rates to minimise hysteresis effects, the PASCAL range provides maximum resolution in minimum time.

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