What is the Breakthrough Analyzer? 

The BTA Frontier is an analytical instrument developed by Surface Measurement Systems (SMS) in the United Kingdom that applies Breakthrough Analysis (BTA) technology to measure competitive sorption across diverse gases, vapors, and samples.

The BTA Frontier can test breakthrough times as single- or multi-component sorption streams pass through packed sample columns. It is an experimental methodology that analyzes time-dependent sorption and desorption behavior by packing a sample into a fixed-bed column and flowing a specific gas or vapor mixture through it.

Breakthrough Analysis (BTA) is an analytical technique for evaluating the dynamic sorption characteristics of porous solid materials, in which a gas or vapor mixture is passed through a sample column while time-dependent changes in component concentration are measured.

Applications 

Environmental — Performance testing of harmful gas removal from air (e.g., VOCs, CO₂, SO₂) Energy — Evaluation of hydrogen storage materials and CO₂ capture sorbents Chemical Processes — Material performance evaluation for Pressure Swing Adsorption (PSA) processes Pharmaceuticals / Food — Research on materials for moisture and organic vapor removal Materials Development — Dynamic evaluation of advanced materials such as MOFs, zeolites, and activated carbons

Key Features 

• Built on DVS Technology — Precisely measures mass changes during sorption and desorption of vapors (moisture or organic solvents)
• Ultra-High-Sensitivity Mass Measurement — Detects mass changes down to 0.1 µg, enabling highly precise analysis
• Accurate Temperature and Humidity Control — Operating range of 5–85 °C with 0–95% RH, reproducing diverse environmental conditions
• Versatile Vapor Compatibility — Supports various organic vapors such as methanol, ethanol, and hexane, as well as mixed vapor experiments
• Sorption/Desorption Hysteresis Analysis — Analyzes pore structure and irreversible characteristics of materials through hysteresis curves
• Diverse Sample Compatibility — Accommodates samples in various forms, including powders, films, fibers, and polymers

Comparative Gas Examples 

• Breakthrough Time — The time at which a specific gas is first detected after passing through the column
• Saturation Time — The point at which the column becomes fully saturated and further sorption ceases
• Dynamic Adsorption Capacity — The practical sorption capacity calculated from the breakthrough curve
• Selectivity — Measurement of how selectively a material adsorbs specific components from a multi-component mixture

Single-Component Breakthrough Curves 

• Equilibrium time (te) and breakthrough time (tb) can be easily measured
• Kinetics of sorption and mass transfer limitations: influence of flow rate, model, and packing
• In-situ sample drying and activation up to 300 °C to determine optimal activation temperature

Case Study: Effect of Temperature on Breakthrough 

• Accurate measurement of breakthrough time at various temperatures
• Operating temperature range of 15–60 °C
• Time settings between breakthrough and equilibrium

Case Study: Effect of H₂O on CO₂ Sorption (20% RH and 3.5 vol% CO₂) 

• Competitive effect of water on CO₂ sorption in porous materials
• Observation of the characteristic "Roll-up" effect as moisture displaces adsorbed CO₂
• Comparative analysis with mass spectrometer (Figure 1) and without (Figure 2)
• Complete reproducibility confirmed through three repeated cycles