Micromeritics will showcase materials-characterisation devices at the Pittcon conference, to take place at the Orange County Convention Center in Orlando, Florida.
Among the devices on display will be the next-generation Saturn Digisizer II High-Definition Digital Particle Size Analyzer, which uses a CCD detector that contains more than three million detector elements, Mie theory and design and data-reduction features to provide a high level of resolution and sensitivity not available in other laser particle-sizing systems.
The Saturn Digisizer II analyses and measures particles over a range of 40nm to 2.5mm.
Features such as fully automated sampling, low-volume sample-handling units and a complete system for circulating the dispersing liquid/sample mixture through the cell and reservoir make the Saturn Digisizer suitable for a range of production, research and quality-control applications.
The Microstar Residual Gas Analyzer features a quadrupole mass spectrometer that complements the Micromeritics Autochem 2910, 2920 and 2950 dynamic chemisorption analysers and is ideally suited for pulse chemisorption studies and temperature-programmed reactions.
It allows the user to follow the evolution of residual gases from the Autochem and use the resulting data to determine reaction kinetics, product selectivity and reaction yields, all of which are vital components of a successful catalyst-development programme.
Unlike traditional temperature-programmed desorption or reduction experiments where only one active gas is monitored, the Microstar continuously monitors reaction products (up to 128 different masses).
Micromeritics’ ASAP 2020 is now available with new vapour and water-vapour options.
This added versatility gives researchers and formulators the capability to characterise the surface area and porosity of materials both before and after exposure to vapours or moisture.
The ASAP 2020 vapour option allows characterisation of large samples, including tablets, pellets, granulated food, powders and desiccant packs and is compatible with a wide range of vapours including benzene, toluene, xylene, ethers, aldehydes, alcohols and amines.
The ASAP 2020 water-vapour option is an ideal tool for performing a detailed characterisation of pharmaceuticals, food, cosmetics and many other materials that absorb or adsorb moisture.
The moisture-adsorption isotherm may be used to understand the water activity of a material that may influence chemical stability, microbial activity, flow properties, compaction, hardness and dissolution rates.
Unlike traditional gravimetric moisture analysis, the ASAP 2020 water-vapour option allows the user to characterise large samples.
Micromeritics’ ASAP 2420 enhanced micropore option extends the low-pressure measurement capabilities of the instrument and allows enhanced performance for characterising microporous materials using nitrogen, argon, carbon dioxide, hydrogen and other fixed gases.
The ASAP 2420 design allows for high-performance/high sample-throughput with six independently operated ports for adsorption analysis and a fully automated sample-preparation module with 12 independently controlled stations.
The multiport capabilities of the ASAP 2420 provide an ideal platform for research and quality-control laboratories that require high-throughput material characterisation, including: BET surface area, pore volume distributions, pore area distributions, micropore analysis and NLDFT modelling of adsorption isotherms.
The HPVA-100 High-Pressure Volumetric Analyzer uses the static volumetric method to measure high-pressure adsorption isotherms with hydrogen, methane, carbon dioxide and other gases.
Applications include catalysts, zeolites, activated carbons, carbon nanotubes, hydrides and metal-organic frameworks.
The operating pressure of the HPVA ranges from high vacuum to 200 bar.
Sample temperatures during analysis can range from cryogenic to 500C.
The Magnetic Analyzer MA-1040 detects minute quantities of iron in a range of materials, including high-purity glass used in fibre optics and plastics used in wiring insulation.
With sensitivity as low as 0.00001 per cent magnetic content, the MA-1040 can also be used to detect low magnetic iron levels in food, precious gems, pharmaceuticals and many other materials.
