What is DVS Vacuum?

The DVS Vacuum is a high-performance sorption analyzer designed for the precise analysis of water vapor and gas sorption behavior in porous materials under vacuum conditions.

It enables highly accurate measurement — under vacuum — of how efficiently diverse porous materials such as zeolites, MOFs, COFs, and activated carbons adsorb gases and water vapor, including the rate of sorption under varying conditions.

The instrument can measure the sorption of a wide range of gases, including water vapor, organic vapors (such as toluene), carbon dioxide (CO₂), and methane (CH₄), and is highly valuable for analyzing sorption kinetics, uptake capacity, isotherms, and desorption behavior.

The DVS Vacuum is widely used in research areas including energy materials, catalysts, and gas storage and separation, and is regarded as an essential tool for comparing and optimizing the performance of sorbent materials.

Applications

Pharmaceuticals — Moisture sorption behavior of Active Pharmaceutical Ingredients (APIs), stability, and storage condition optimization Battery / Energy Materials — Moisture sensitivity analysis of electrode and electrolyte materials, and stability evaluation of solid electrolytes Porous Materials (MOFs, Zeolites, Silica, and more) — Vapor sorption isotherms, specific surface area, and pore structure analysis Polymers and Composite Materials — Hygroscopic behavior, solvent sorption properties, and long-term stability evaluation Food and Biomaterials — Quality changes as a function of moisture content, and research on drying and storage conditions Fuel Cells / Catalysts — Reactivity with vapors and surface property analysis

Key Features

Sorption/Desorption Experiments Under High Vacuum — Operating pressures down to 10⁻⁶ mbar
Ultra-Precision Mass Measurement — Detects mass changes at the microgram (µg) level
Versatile Vapor Compatibility — Supports not only water vapor but also organic solvents such as methanol and acetone
Precise Temperature Control — Operating range from −20 °C to +70 °C or higher, depending on the model
Automated Protocols — Automatic control of time, concentration, and temperature conditions for repeatable experiments
Quantitative Analysis — Extraction of sorption/desorption isotherms, diffusion coefficients, and thermodynamic parameters
Small Sample Volume Capability — High-precision measurements with sample masses in the milligram range

Vacuum Range	Up to 10⁻⁶ mbar (high vacuum)
Temperature Range	-20°C ~ +70°C or wider range (varies by option)
Applicable Vapors	Water (H₂O), organic solvents (e.g. methanol, ethanol, acetone, etc.)
Precision Balance	Microgram-level mass change detection (typically 0.1 μg resolution)
Sample Mass Range	A few mg ~ tens of mg (varies depending on sample form)
Measurement Method	Continuous gravimetric analysis
Automation	User-defined multi-cycle sequential measurement
Data Output	Isotherms, sorption/desorption curves, diffusion model fitting, etc.

What is DVS Vacuum?

The DVS Vacuum is a high-performance sorption analyzer designed for the precise analysis of water vapor and gas sorption behavior in porous materials under vacuum conditions. It enables highly accurate measurement — under vacuum — of how efficiently diverse porous materials such as zeolites, MOFs, COFs, and activated carbons adsorb gases and water vapor, including the rate of sorption under varying conditions.

The instrument can measure the sorption of a wide range of gases, including water vapor, organic vapors (such as toluene), carbon dioxide (CO₂), and methane (CH₄), and is highly valuable for analyzing sorption kinetics, uptake capacity, isotherms, and desorption behavior.

The DVS Vacuum is widely used in research areas including energy materials, catalysts, and gas storage and separation, and is regarded as an essential tool for comparing and optimizing the performance of sorbent materials.

Applications

Pharmaceuticals — Moisture sorption behavior of Active Pharmaceutical Ingredients (APIs), stability, and storage condition optimization Battery / Energy Materials — Moisture sensitivity analysis of electrode and electrolyte materials, and stability evaluation of solid electrolytes Porous Materials (MOFs, Zeolites, Silica, and more) — Vapor sorption isotherms, specific surface area, and pore structure analysis Polymers and Composite Materials — Hygroscopic behavior, solvent sorption properties, and long-term stability evaluation Food and Biomaterials — Quality changes as a function of moisture content, and research on drying and storage conditions Fuel Cells / Catalysts — Reactivity with vapors and surface property analysis

Key Features

Sorption/Desorption Experiments Under High Vacuum — Operating pressures down to 10⁻⁶ mbar
Ultra-Precision Mass Measurement — Detects mass changes at the microgram (µg) level
Versatile Vapor Compatibility — Supports not only water vapor but also organic solvents such as methanol and acetone
Precise Temperature Control — Operating range from −20 °C to +70 °C or higher, depending on the model
Automated Protocols — Automatic control of time, concentration, and temperature conditions for repeatable experiments
Quantitative Analysis — Extraction of sorption/desorption isotherms, diffusion coefficients, and thermodynamic parameters
Small Sample Volume Capability — High-precision measurements with sample masses in the milligram range

Vacuum Range	Up to 10⁻⁶ mbar (high vacuum)
Temperature Range	-20°C ~ +70°C or wider range (varies by option)
Applicable Vapors	Water (H₂O), organic solvents (e.g. methanol, ethanol, acetone, etc.)
Precision Balance	Microgram-level mass change detection (typically 0.1 μg resolution)
Sample Mass Range	A few mg ~ tens of mg (varies depending on sample form)
Measurement Method	Continuous gravimetric analysis
Automation	User-defined multi-cycle sequential measurement
Data Output	Isotherms, sorption/desorption curves, diffusion model fitting, etc.

DVS Vacuum

DVS Vacuum Specifications

DVS Vacuum Vapor Pressure Measurement Data