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TriStar II Plus

High throughput BET surface area analyzer

  • Rapid analysis and true parallel operation enhances laboratory throughput
  • Reliable accuracy for the highest decision-making and reporting confidence
  • Trusted worldwide: every 3 seconds, a BET surface area measurement is performed on a TriStar

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Overview

The TriStar II Plus, a Micromeritics technology, is a fully automated BET surface area analyzer designed for rapid, high-throughput analysis with high accuracy.

Its three-station design increases the speed and efficiency of routine quality control while maintaining the accuracy, resolution, and data reduction capabilities needed for research applications.

With versatile analysis methods and advanced data reduction, the TriStar II Plus adapts to meet specific application requirements.

Features

  • Provides frustration-free operation and ensures repeatable chamber volume.

  • The unique analysis manifold is designed for highly accurate gas management.

  • Three analysis ports operate simultaneously and independently of one another. Three BET surface area measurements can be performed in less than 20 minutes. For additional throughput, four Micromeritics TriStar units can be operated with one computer.

  • A dedicated Po port is standard, allowing the measurement of saturation pressure on a continuous basis. Saturation pressure can be entered manually, measured continuously, or collected over the sample. The TriStar II Plus provides the flexibility to control and fine-tune analysis speed and accuracy.

  • Isothermal Jackets ensure a constant thermal profile along the full length of both sample and saturation pressure (Po) tubes.

  • The dewar design provides more than 40 hours of continuous temperature control

Applications

Specification

Absolute
Range: 0 to 950 mmHg
Resolution: Within 0.05 mmHg
Accuracy: Within 0.1% of full scale Linearity: < ± 0.1% of span
Relative
P/P0 range: 0 to 1.0 P/P0
Resolution: < 10-4

Accessories

Sample Preparation Systems

External sample preparation is recommended to provide optimal analysis throughput and quality of measurement. 

All basic sample preparation systems are designed with six independent stations so samples can be prepared as they become available, and so preparation does not limit analytical throughput.

Why TriStar II Plus?

  • High throughput: The TriStar II Plus offers an efficient high throughput system with three sample ports operating simultaneously and independently. For additional throughput, up to four units can be operated with one computer.
  • Surface areas as low as 0.01 m2/g can be measured with the standard nitrogen system. Available Krypton Option can extend surface area measurements to as low as 0.001 m2/g.
  • Adsorbate choice: The TriStar II Plus accommodates analysis with a variety of adsorbates including argon, carbon dioxide, and other non-corrosive gases such as butane, methane, and other light hydrocarbons.
  • Sample types: Free space can be measured, calculated, or manually entered providing maximum flexibility in accommodating special sample types and emphasizing speed when needed.
  • Isothermal Jackets ensure a constant thermal profile along with the full length of both sample and saturation pressure (P0) tubes.
  • Micromeritics MicroActive software provides interactive data reduction and control, enabling users to calculate surface area and porosity with ease. User-selectable data ranges through the graphic interface allow direct modeling for BET, t-Plot, Langmuir, and DFT interpretation.
  • Enhanced software capabilities allow comprehensive pore size distribution data by gas adsorption & mercury intrusion overlay and advanced NLDFT.

Enhanced software capabilities

The intuitive Micromeritics MicroActive control software for the TriStar II Plus streamlines isotherm data evaluation, reducing the time required to obtain surface area and porosity results. It is not necessary to generate reports to view results. 

Users can effortlessly generate and adjust calculations, such as the BET surface area transform plot, while selection bars enable quick and easy data point selection. As a result, calculation summaries update instantly, and data ranges can be further refined within the calculation window(s).

Gas adsorption and mercury intrusion overlay

MicroActive software for the Micromeritics TriStar II Plus also features a powerful utility that allows users to overlay mercury porosimetry pore size distributions with those derived from gas adsorption isotherms. 

This import function allows users to rapidly view micropore, mesopore, and macropore distributions in one easy-to-use application

Advanced NLDFT

The Advanced 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. CO2 can access small micropores that are not accessible to N2 at cryogenic temperatures due to size restrictions, connectivity problems, or extremely slow diffusion.

Manuals

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Software

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Trusted by more scientists around the world.

Trusted by more scientists around the world.

Rapid analysis and true parallel operation. Reporting confidence. Take your BET surface area analysis to the next level.

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