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TriStar II Series2

Surface Area and Porosity Instrument

Analytical Versatility/ High Throughput/ Small Footprint

The TriStar II is a fully automated, three-station, surface area and porosity analyzer that delivers high-quality data at an affordable price. The TriStar II also features a Krypton Option, allowing measurements in a very low surface area range.

A Small Footprint Packed with Features

  • Three analysis ports can operate simultaneously and independently of one another. Three BET surface area measurements can be performed in less than 20 minutes.

  • The TriStar II accommodates the use of nitrogen, argon, carbon dioxide, and other non-corrosive gases such as butane, methane, or other light hydrocarbons.

  • 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.

  • Incremental or fixed dosing routines prevent overshooting pressure points while minimizing analysis time.

  • Free space can be measured, calculated, or manually entered providing maximum flexibility in accommodating special sample types and emphasizing speed when needed. Helium is not required.

  • The TriStar II can collect up to 1000 data points. Fine details of the isotherm can be observed and recorded providing high resolution and revealing pore structure details.

  • Optional sample preparation devices are available combining flowing gas and/or vacuum with heat to remove atmospheric contaminants, such as water vapor and adsorbed gas, from the surface and pores of the sample

Low Surface Area Measurement Option

  • A Krypton Option can extend surface area measurements to as low as 0.001 m2/g.

Operating Software

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, scalableand 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.

Tabular and Graphic Reports:

  • Single and multipoint BET surface area
  • Total pore volume
  • Langmuir surface area and Isotherm reports
  • t-plot
  • Harkins and Jura Thickness Equation
  • Halsey Thickness Equation
  • Carbon STSA
  • Broekhoff-de Boer
  • Kruk-Jaroniec-Sayari
  • BJH adsorption and desorption
  • Standard
  • Kruk-Jaroniec-Sayari correction
  • Dollimore-Heal adsorption and desorption
  • Mesopore
  • Volume and area distributions by pore size
  • MP-Method
  • HK
  • Saito-Foley
  • Chang-Yang
  • DFT pore size
  • DFT surface energy
  • Summary Report
  • SPC reports
  • Validation reports

Micromeritics’ sample preparation devices prepare batches of samples for surface area and pore volume analysis. They combine flowing gas and/or vacuum with heat to remove atmospheric contaminants, such as water vapor and adsorbed gas, from the surface and pores of the sample.

The FlowPrep™ 060 applies both heat and a stream of inert gas to the sample for removal of adsorbed contaminants from the surface and pores. With six degassing stations, this sample preparation unit lets you choose the temperature, gas, and flow rate.

The VacPrep™ 061 offers two methods for removing adsorbed contaminants. In addition to flowing gas, this sample preparation unit provides vacuum to prepare samples by heating and evacuation.

The SmartPrep™ 065 applies a stream of flowing gas over the sample at elevated temperatures to remove adsorbed contaminants. Temperature, ramp rates, and soak times of each sample are individually controlled on the six degas- sing stations by a computer.

The Smart VacPrep™ 067 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.