AutoFlow BET+™: Fully Automated Dynamic Flow System for Rapid Surface Area Analysis

The AutoFlow BET+™ from Anton Paar is a completely automated advanced dynamic flow system built to enable a very fast evaluation of the surface areas of solid samples. Single-point or multi-point determination of surface areas using a variety of standard techniques (such as STSA and BET) is easily performed without the requirement for re-calibrating signal responses or measuring system void volumes.

The instrument comprises one control module and one, two, or three autonomous analysis stations. The control module features a touchscreen and accommodates three built-in sample preparation stations. Pure gas inputs (krypton or nitrogen as adsorbates and helium as a carrier) or, optionally, premixed gases are automatically mixed to the preferred target concentrations using built-in mass flow controllers. The system also has unique MEMS-TCD sensors and all standard accessories required for its operation.


Exceptional Speed

  • Multi-point BET areas in < 15 minutes/sample
  • Single point BET areas in < 5 minutes/sample
  • No need for pre or post-calibration

Superior Throughput

  • Up to 3 multi-point BET areas in < 15 minutes
  • Up to 3 single point BET areas in < 5 minutes
  • Up to 36 BET area analyzes per hour

Widest Analytical Range

  • Isotherm data between 0.005 and 0.95 P/Po
  • Surface areas between 0.1 and >3,000 m2/g
  • Surface areas as low as 0.05 m2 in a cell with Kr

Built-In Sample Preparation

  • Three independently programmable degassers
  • Adjustable flows and fast-cooling slots
  • Maximum degas temperature 350 °C (450 °C optional)

Software Capabilities

  • Ethernet and remote access
  • Supports 21 CFR Part 11 compliance
  • Multiple language options

Technical Specifications

Feature Feature Detail Specification
Accuracy Percent of Target ± 1% *
Repeatability Same Sample in Same Station ± 0.2%
Reproducibility Between Different Units ± 0.5%
Lower Limit BET Surface Area [m2/g] 0.01
Upper Limit BET Surface Area [m2/g] No limit
Lower Limit N2 Surface Area [m2] 0.1
Lower Limit N2 Surface Area [m2] 350
Lower Limit Kr Surface Area [m2] 0.05
Speed Single Point BET, 1 sample [minutes] < 5
Speed Single Point BET, 3 samples [minutes] 5
Speed 3-Point BET, 1 sample [minutes] < 15
Speed 3-Point BET, 3 samples [minutes] 15
Degasser Max. Temp. Degree Celsius [˚C] 350 (450**)
Sample Capacity Per Analysis Station One Cell
Analysis Stations Per Control Module up to 3
Multiple System Paths Per Control Module 3
Mass Flow Controllers Per Analysis Station 2
Pressure Sensors Per Analysis Station 1

* As compared to vacuum/volumetric data.
** Optional, using quartz glassware.

This product is a former Quantachrome product. On February 9, 2018, Anton Paar acquired Quantachrome. Under the umbrella of the Anton Paar Group, the company will continue operations in Boynton Beach. Quantachrome is the first manufacturing facility in North America run by Anton Paar and will also function as a US-based unit for research, development, and production within the Anton Paar Group.

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