Description
The RuboSORP MSB is a high-precision gravimetric sorption analyzer that utilizes advanced magnetic-suspension technology, designed for demanding research applications under extreme conditions.
Unlike conventional microbalances that require the balance to be placed inside or directly connected to the sample chamber, the MSB employs a contactless magnetic coupling system. The sample is housed in a sealed, high-pressure/high-temperature chamber, while the microbalance itself remains outside in ambient conditions. This innovative design enables accurate mass change measurements even when the sample is subjected to high pressure, high temperature, corrosive atmospheres, or supercritical fluids.
Key Features
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Magnetic suspension weighing system: Provides microgram-level resolution (as fine as 1 µg) with minimal drift and frictional interference.
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Dual-sample capability: Allows simultaneous analysis of two samples, or one sample and one calibrated sinker for real-time gas or fluid density measurement using Archimedes’ principle.
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Wide environmental range: Operates under high pressures (up to 150, 350, or 700 bar depending on the model) and high temperatures (up to ~400 °C).
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Modular and flexible configuration: Features interchangeable sample cells, viewing windows for in-situ visual observations, custom sample holders, and optional forced flow through the crucible.
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Compatible with harsh environments: The sealed coupling chamber allows safe use of toxic, corrosive, or supercritical fluids without affecting balance integrity.
Typical Specifications
| Model | Max Pressure | Max Temperature | Max Sample Load | Resolution |
|---|---|---|---|---|
| MSB-150 | ~150 bar | up to ~400 °C | ~25–50 g | 10 µg or 1 µg |
| MSB-350 | ~350 bar | up to ~400 °C | ~25–50 g | 10 µg or 1 µg |
| MSB-700 | ~700 bar | up to ~150 °C | ~25–50 g | 10 µg or 1 µg |
Note: Temperature range decreases as pressure capacity increases; load and resolution may vary by configuration.
Applications
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Analysis of hydrogen or methane storage materials under realistic high-pressure conditions.
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Safe sorption and adsorption studies of reactive or corrosive gases such as Cl₂, H₂S, and SO₂.
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Supercritical fluid adsorption and kinetics studies (e.g., CO₂ in polymers, biomass, or coal).
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Competitive adsorption analysis for multicomponent gas mixtures, allowing direct measurement of density and mass change without external analytical instruments.
Benefits
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Exceptional long-term stability due to minimal drift and isolated balance/sampling interface.
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Capable of operating under extreme experimental conditions beyond the capability of conventional systems.
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Highly customizable for advanced research, including in-situ visualization and specialized sample environments.
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Dual-sample and density measurement options expand experimental flexibility.
Considerations
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The wide range of configurations and capabilities may result in higher equipment and maintenance costs.
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Laboratory infrastructure should support high-pressure and corrosive gas safety systems.
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Operator training is essential for safe and accurate high-pressure sorption experiments and data interpretation.
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Model selection should align with specific research requirements, including pressure, temperature, and material compatibility.
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