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| Manufacturer | Micrometrics |
|---|---|
| Model | Gemini VII 2390P |
| Year | 2014 |
| Location | Italy
|
The Micromeritics Gemini VII 2390P, manufactured in 2014, is a precision instrument designed for surface area and porosity analysis of micro- and nano-porous materials. It employs a static volumetric technique that uniquely adapts the rate of gas delivery to the sample based on the adsorption rate, enhancing the accuracy and sensitivity of measurements. The system features two gas reservoirs filled with equal volumes of adsorption gas, typically nitrogen. Gas is metered into the sample from balance tubes via a servo valve that responds to adsorption rates, while a transducer monitors pressure inside the sample tube to maintain equilibrium between the sample and balancing tubes. This differential dosing and sensing method allows for rapid and precise determination of adsorption characteristics.
The 2390P model includes an additional saturation pressure tube (P0) that continuously monitors the adsorber's saturation pressure during analysis. This feature enables rapid measurement of adsorption isotherms near saturation and facilitates determination of pore size distribution. The instrument's design supports detailed understanding and control of surface area and pore volume, which are critical for evaluating material quality and utility.
Accompanying the Gemini VII is the Micromeritics FlowPrep 060 Sample Degas System, which applies controlled heat and inert gas flow to samples. This system desorbs contaminants and sweeps them out of the sample tube, with adjustable temperature, gas type, and flow rate to suit various materials and applications. Needle valves allow for slow gas introduction to prevent sample fluidization.
The Gemini VII features a white and blue top housing with a dark tinted front panel. The front panel can be opened to access a metallic ISOTHERM sample holder and two probes or sensors inside the instrument. A small white container labeled Micromeritics with a red cap is positioned on the right side of the instrument. The FlowPrep 060 unit includes a digital control panel on its top right and multiple sample tubes connected by yellow tubing. Both units are shown to be clean and well-maintained with only minor wear on labels. This setup is suitable for laboratories requiring detailed surface characterization of porous materials.
The following description has been generated using artificial intelligence based on the product information available. It is provided for guidance only and may not reflect all specifications or conditions. Please contact us if you need precise or confirmed details.
Surface area and pore volume are important physical properties that affect the quality and utility of many materials and products. Therefore, it is of paramount importance that these characteristics be accurately determined and controlled. Similarly, knowledge of surface area and pore volume is often an important variant in understanding the formation, structure, and potential application of many natural materials.
This tool uses a static volumetric technique to determine the true surface area of micro- and nano-porous systems. It is the first gas adsorption method that adapts the rate at which gas is delivered onto the sample to the rate at which it is adsorbed. The Gemini has two gas reservoirs that are filled with equal volumes of adsorption gas, which is usually nitrogen. From the reservoirs, the gas is metered into the sample from the balance tubes by a servo valve that reacts to the rate of adsorption. A transducer monitors the pressure inside the tube containing the sample. In a typical dose-and-wait analytical system, the pressure inside the tube decreases after each dose as the sample absorbs gas, whereas in the case of this system, a transducer located between the sample and the balancing valves detects any pressure difference between the two tubes and causes another servo valve to adjust the pressure inside the balancing tube to cancel out any pressure difference. A third pressure transducer monitors the pressure between the two tanks to determine the differential amount of gas, the difference being the amount that is adsorbed onto the sample. These differential amount dosing and sensing methods enable Gemini to accurately determine adsorption characteristics at a level of speed and sensitivity unsurpassed by other static volumetric instruments. Model 2390P provides additional precision with the addition of a saturation pressure tube (P0) that allows the system to monitor the adsorber's saturation pressure on a continuous basis during analysis. This design feature allows rapid measurement of the adsorption isotherm at near saturation, as well as determination of the pore size distribution.
FlowPrep 060 applies both heat and an inert gas flow to the sample. The heat desorbs contaminants from the surface and the inert gas flow sweeps them out of the sample tube. It allows you to choose the temperature, gas, and flow rate best suited to the sample material and application. The
needle valves allow slow introduction of flowing gas to prevent fluidization of samples.
Please note that this description may have been translated or optimized with artificial intelligence (AI) automatically. The information of this classified ad are only indicative. We recommend to check the details with the seller before a purchase.
| Client type | Factory – large company |
| Active since | 2024 |
| Offers online | 4 |
| Last activity | Nov. 4, 2026 |
Surface area and pore volume are important physical properties that affect the quality and utility of many materials and products. Therefore, it is of paramount importance that these characteristics be accurately determined and controlled. Similarly, knowledge of surface area and pore volume is often an important variant in understanding the formation, structure, and potential application of many natural materials.
This tool uses a static volumetric technique to determine the true surface area of micro- and nano-porous systems. It is the first gas adsorption method that adapts the rate at which gas is delivered onto the sample to the rate at which it is adsorbed. The Gemini has two gas reservoirs that are filled with equal volumes of adsorption gas, which is usually nitrogen. From the reservoirs, the gas is metered into the sample from the balance tubes by a servo valve that reacts to the rate of adsorption. A transducer monitors the pressure inside the tube containing the sample. In a typical dose-and-wait analytical system, the pressure inside the tube decreases after each dose as the sample absorbs gas, whereas in the case of this system, a transducer located between the sample and the balancing valves detects any pressure difference between the two tubes and causes another servo valve to adjust the pressure inside the balancing tube to cancel out any pressure difference. A third pressure transducer monitors the pressure between the two tanks to determine the differential amount of gas, the difference being the amount that is adsorbed onto the sample. These differential amount dosing and sensing methods enable Gemini to accurately determine adsorption characteristics at a level of speed and sensitivity unsurpassed by other static volumetric instruments. Model 2390P provides additional precision with the addition of a saturation pressure tube (P0) that allows the system to monitor the adsorber's saturation pressure on a continuous basis during analysis. This design feature allows rapid measurement of the adsorption isotherm at near saturation, as well as determination of the pore size distribution.
FlowPrep 060 applies both heat and an inert gas flow to the sample. The heat desorbs contaminants from the surface and the inert gas flow sweeps them out of the sample tube. It allows you to choose the temperature, gas, and flow rate best suited to the sample material and application. The
needle valves allow slow introduction of flowing gas to prevent fluidization of samples.
Please note that this description may have been translated or optimized with artificial intelligence (AI) automatically. The information of this classified ad are only indicative. We recommend to check the details with the seller before a purchase.
The Micromeritics Gemini VII 2390P, manufactured in 2014, is a precision instrument designed for surface area and porosity analysis of micro- and nano-porous materials. It employs a static volumetric technique that uniquely adapts the rate of gas delivery to the sample based on the adsorption rate, enhancing the accuracy and sensitivity of measurements. The system features two gas reservoirs filled with equal volumes of adsorption gas, typically nitrogen. Gas is metered into the sample from balance tubes via a servo valve that responds to adsorption rates, while a transducer monitors pressure inside the sample tube to maintain equilibrium between the sample and balancing tubes. This differential dosing and sensing method allows for rapid and precise determination of adsorption characteristics.
The 2390P model includes an additional saturation pressure tube (P0) that continuously monitors the adsorber's saturation pressure during analysis. This feature enables rapid measurement of adsorption isotherms near saturation and facilitates determination of pore size distribution. The instrument's design supports detailed understanding and control of surface area and pore volume, which are critical for evaluating material quality and utility.
Accompanying the Gemini VII is the Micromeritics FlowPrep 060 Sample Degas System, which applies controlled heat and inert gas flow to samples. This system desorbs contaminants and sweeps them out of the sample tube, with adjustable temperature, gas type, and flow rate to suit various materials and applications. Needle valves allow for slow gas introduction to prevent sample fluidization.
The Gemini VII features a white and blue top housing with a dark tinted front panel. The front panel can be opened to access a metallic ISOTHERM sample holder and two probes or sensors inside the instrument. A small white container labeled Micromeritics with a red cap is positioned on the right side of the instrument. The FlowPrep 060 unit includes a digital control panel on its top right and multiple sample tubes connected by yellow tubing. Both units are shown to be clean and well-maintained with only minor wear on labels. This setup is suitable for laboratories requiring detailed surface characterization of porous materials.
The following description has been generated using artificial intelligence based on the product information available. It is provided for guidance only and may not reflect all specifications or conditions. Please contact us if you need precise or confirmed details.
| Client type | Factory – large company |
| Active since | 2024 |
| Offers online | 4 |
| Last activity | Nov. 4, 2026 |
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