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Micromeritics' TriStar II Plus is a state-of-the-art instrument suited for use in both quality control and research environments. Intended for laboratories that require high throughput and the highest quality data, it contains all the capabilities of the TriStar II with additional hardware and software features.
The TriStar II Plus is a an automated, three-station, surface area and porosity analyzer that delivers excellent performance and speed of analysis. With three available analysis ports, the TriStar II Plus provides high sample through-put and advanced data analysis features to the user. The unique stainless steel analysis manifold is corrosive resistant and designed for highly accurate gas management for confident and repeatable results.
A Krypton Option can extend surface area measurements to as low as 0.001 m2/g.
The intuitive MicroActive for TriStar II Plus software gives the user the ability to interactively evaluate isotherm data and reduce the time required to obtain surface area and porosity results. It is not necessary to generate reports to view results.
Calculations, such as the BET surface area transform plot, can be easily generated and adjusted. The selection bars allow for a range of data points to be quickly and easily selected. As a result, the summary of values derived from the calculations is instantly updated. Within the calculation window(s), the range of data used can be further refined.
The Dual DFT NLDFT model allows the user to combine the information gathered from nitrogen and carbon dioxide isotherms to deliver a full pore size distribution on materials (such as carbon slit pores) where pores of molecular sizes are present. The range of pore size analysis in this method is extended to smaller pore sizes compared to the standard nitrogen analysis. This is due to the fact that CO2 can access some very small micropores that are not accessible to N2 at cryogenic temperatures due to size restrictions, connectivity problems, or extremely slow diffusion.
This advanced NLDFT method allows users to determine the pore size distribution of their sample using two isotherms. In this example CO2 adsorption (red) at 273 K and nitrogen adsorption (green) at 77 K are used to calculate a single pore size distribution. Users do not have to cut and paste distributions from CO2 and nitrogen - a single distribution is determined using both isotherms.
The VacPrep™ 061 offers two methods for removing contaminants. In addition to flowing gas, it provides vacuum to prepare samples by heating and evacuation. This combination allows you to choose the preparation method that is best suited to your material or application. The VacPrep features six degassing stations, and a choice of vacuum or gas flow preparation on each of the six stations. Needle valves are also provided allowing you to introduce the flowing gas or vacuum slowly to prevent fluidization of samples.
The Smart VacPrep™ is an advanced six-port system that utilizes vacuum to prepare samples by heating and evacuation. Each of the ports may be operated independently. Samples may be added or removed from degas ports without disturbing the treatment of other samples undergoing preparation. Degassing automatically terminates when the samples have completed all programmed steps.
The SmartPrep™ 065 is a flowing-gas degassing unit which removes adsorbed contaminants from the surface and pores of a sample in preparation for analysis. It contains six sample ports, each one independently temperature-controlled for greater flexibility. It contains two serial ports, one for connecting to the computer and the other available for connection of an additional SmartPrep. The temperature, ramp rates, and soak times of each sample are individually controlled by the computer. Up to five ramps and soaks are allowed. All degas information is integrated into the sample data file for future reference.
Cirrus 2 offers the versatility of state-of the-art Microvision 2 quadrupole mass spectrometry in a convenient bench-top configuration.
The TriStar II Windows interface provides a familiar environment for the user. It is easy to collect, organize, archive, reduce isotherm data, and store standardized sample information for later use. The reports may be generated to screen, paper, or spreadsheet file. Cut-and-paste graphics, scalable and editable graphs, and customized reports are easily generated.
In addition to controlling instrument operation, the Windows software also reduces the isotherm data collected during analysis. The reduced data can be reviewed or printed in a variety of easy-to- interpret tabular and graphical reports.
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