ISO-Controller
Sub-Ambient, thermoelektrisch gekühlter Dewar
TriStar II Plus
The world’s most trusted high-throughput BET surface area platform.
Rapid, research‑grade BET surface area measurements in a fully automated, three‑station system. Experience true parallel operation for exceptional productivity.
Up to 3
simultaneous BET analyses
<20 min
analysis time
0.001 m²/g
low surface area measurement
Right-first-time surface area and porosity analysis, built for demanding labs.
The TriStar II Plus 3030, a Micromeritics technology, is trusted by leading labs worldwide as a high-throughput BET surface area and porosity analyzer with research-grade accuracy and outstanding ease of use.
Using gas adsorption, TriStar II Plus measures the surface area and pore structure characteristics that influence material performance. With three independent analysis stations, automated workflows, and flexible data analysis, it helps R&D and QC labs generate reliable insights with the speed, consistency, and confidence needed for demanding applications.
Advanced analysis, made simple
Advanced analysis, made simple
- 3 analysis ports enable high throughput with simultaneous measurements
- Servo valve technology optimizes gas dosing for maximum speed and precision
- Larger 3L cryogenic Dewar supports longer analysis times
- MicroActive software simplifies data analysis and method transfer
- Dedicated vacuum system accelerates preparation and maintains cleanliness
Built-in versatility
- Measure both surface area and porosity on a single instrument
- Analyze materials with surface areas as low as 0.001 m2/g using krypton
- Easily switch between gas types within our extensive gas library
- Unique ISO controller maintains near-ambient conditions for a range of gas analysis temperatures
- Use helium or nitrogen to support accurate free-space measurements and reliable results across a wide range of surface area and porosity measurement applications
Exceptional stability and uptime
- Isothermal jackets, invented by Micromeritics, maintain a stable thermal environment
- Dedicated P₀ port continuously tracks saturation pressure
- Average instrument lifetime of 10+ years
- Uptime typically >90% with the help of our global network of experts
- Corrosion-resistant stainless-steel manifold supports long-term reliability
High-throughput
True parallel analysis.
Optimum lab productivity.
Three analysis ports with dedicated pressure transducers enable true parallel measurement, for high-throughput analysis that delivers results in <20 minutes. Plus, you can control up to four TriStar units from a single computer for increased productivity.
See TriStar II Plus in action
Watch how fast, precise, automated BET surface area measurements drive better decisions and higher throughput.
Productivity
Maximum efficiency,
even for long analyses.
Our 3 L cryogenic dewar supports consistent, uninterrupted analysis for up to 40 hours, with combined porosity and surface area analysis that delivers double the data from one measurement run.
Anwendungen
TriStar II Plus supports reliable BET surface area analysis across a diverse range of industries and materials, helping operators achieve essential improvements to their processes. Find out more below.
Batteries and fuel cells
Maximize energy storage capacity and generation efficiency with precise insights into electrode surface area and porosity.
Hydrogen storage
More reliably predict and optimize hydrogen storage capacity by characterizing the surface area and pore structure of candidate materials, including nanotubes.
Adsorbentien
Knowledge of surface area, total pore volume, and pore size distribution is important for quality control of industrial adsorbents and in the development of separation processes. Surface area and porosity characteristics affect the selectivity of an adsorbent.
Katalysatoren
Quantify the total surface area and pore structure of your catalysts to optimize selectivity and maximize the desired product yield.
Activated carbons
Precisely characterize surface area and porosity to ensure that activated carbons perform within the narrow ranges required for optimal vapor recovery, solvent capture, and wastewater pollution control.
Pharmazeutika
Characterize the surface area and porosity that govern essential characteristics such as dissolution rate, bioavailability, blending uniformity, and shelf life across the processing and packaging stages.
Keramik
Estimate fluid storage capacity and guide extraction planning in groundwater and petroleum exploration with better insights into formation porosity.
Paints and coatings
Measure pigment surface area to predict gloss, texture, color, and film adhesion properties, and evaluate coating porosity for better control of ink receptivity and blistering in offset printing.
Additive manufacturing
Easily measure the specific surface area and pore structure of your materials to reveal how rough surfaces or internal porosity influence particle reactivity and sintering behavior.
Spezifikation
| Absolut | Range: 0 to 950 mmHg |
| Relativ | P/P0 range: 0 to 1.0 P/P0 |
| Spezifische Oberfläche | Ab 0,01m2/g, Einheit Stickstoff |
| Gesamtfläche | Ab 0,1m2, Stickstoff-Einheit |
| Porenvolumen | Von 4 × 10-6 cm³/g |
| Dewar Dauer | bis zu 40 Stunden |
| Gasverbrauch | Bis zu 300 cm³ STP pro Anschluss |
| Einheit Stickstoff | Stickstoff; Argon, Kohlendioxid oder andere nicht korrosive Gase; Butan, Methan oder andere leichte Kohlenwasserstoffdämpfe. Auch Sauerstoff kann nur mit einer geeigneten Vakuumpumpe verwendet werden. |
| Krypton-Einheit | Wie Stickstoffgerät, plus die Möglichkeit, Krypton-Oberflächenanalysen bei niedrigeren Drücken durchzuführen |
| Genauigkeit | ±0.25 °C |
| Auflösung | Innerhalb von 0,1 °C |
| Einheit Stickstoff | Muss 20 × 10-3 mmHg oder besser sein; verwendet ölbasierte oder ölfreie Vakuumpumpe |
| Krypton-Einheit | Muss für 1 × 10-3 mmHg geeignet sein; ölfreie Vakuumpumpe erforderlich |
| Temperatur | 10 bis 35 °C (50 bis 95 °F), in Betrieb |
| Luftfeuchtigkeit | 20 bis 80% relativ, nicht kondensierend |
| Verwendung im Innen- oder Außenbereich | Nur in Innenräumen |
| Höhe | 74 cm (29 in.) |
| Breite | 40 cm (16 in.) |
| Tiefe | 51 cm (20 in.) |
| Gewicht | 37 kg (82 lbs) |
| Spannung | 100-240V~ |
| Strom | 150VA, maximal |
| Frequenz | 50/60Hz |
| Überspannungskategorie | II |
Accessories and Sample Preparation
Sample preparation and temperature control
External sample preparation is recommended to provide optimal throughput and measurement quality.
With up to six sample preparation stations, multiple samples can be degassed simultaneously, increasing throughput and reducing preparation bottlenecks.
FAQ
The main difference between the BET and Langmuir surface area models is that Langmuir focuses on monolayer adsorption (one layer of molecules), while BET accounts for multilayer adsorption (multiple layers of molecules building on top of one another).
A Brunauer-Emmett-Teller (BET) surface analyzer utilizes the gas adsorption technique which measures the physical adsorption of gas molecules (adsorptive) on a solid/porous surface. This is a non-destructive technique.
- 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. The 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.
- Free space: 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 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.
Instead of using mercury, the TriStar uses gas adsorption to measure porosity and pore size distribution. Because of the different techniques, different pore diameter ranges are measured, with some overlap. Mercury intrusion porosimetry measures pore diameters from 3 nm in diameter up to 500 µm and beyond. Gas adsorption can measure pores 300 nm in diameter and below.
Porosity testing involves finding the total volume of empty space within a material, whereas pore size refers to the dimensions of those individual empty spaces or channels. Porosity dictates how much fluid a material can store, while pore size determines how easily fluid can flow through it or how effectively it can filter particles.
Please see our Porosimetry page to learn more about how the TriStar analyzer compares to our other instruments.
Nitrogen, argon, carbon dioxide, butane, methane, other light hydrocarbons, and other non-corrosive gases.
Oxygen can be used with an appropriate vacuum pump.
Yes, the Confirm version of TriStar software supports 21 CFR part 11 regulated environments and IQ/OQ is available during installation upon request.
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