Gemini® VII 2390
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Rapid and Precise Surface Area Analysis Surface area and pore volume are important physical properties that influence the quality and utility of many materials and products. Therefore, it is critically important that these characteristics be accurately determined and controlled. Likewise, knowledge of surface area and pore volume, often is an important key in understanding the formation, structure, and potential application of many natural materials. Micromeritics' Gemini VII 2390 Series of surface area analyzers rapidly and reliably produces accurate and repeatable surface area and...

Three Model Options Gemini VII 2390a The Gemini VII 2390a model is ideal for rapid and accurate surface area determinations by single-point and multipoint BET and Langmuir methods. In addition, it provides standard methods for total micropore volume using the t-plot method. Included in this model's capabilities is the ability to determine statistical thickness surface area (STSA) of carbon blacks. (Refer to ASTM D 6556, ISO/DIS 18852.2, or ISO/CD 4652-2/3.) Gemini VII 2390p The Gemini VII 2390p model provides additional precision with the addition of a saturation pressure (P0) tube...

Operating Software Gemini analyzers can be operated from a keypad by way of embedded software or from a computer using the more-powerful and versatile Gemini Windows optional software. The embedded software includes: • System verification tests • Single- and Multipoint BET (Brunauer, Emmett, and Teller) surface area • Langmuir surface area • Total pore volume • Total micropore volume and area by the t-Plot method using Halsey, Harkins-Jura, or Carbon Black STSA thickness curves • Horvath-Kawazoe for micropore distribution • BJH pore size distribution using adsorption isotherm (Gemini 2390p...

The Gemini VII 2390p includes a dedicated transducer for continuously monitoring the saturation pressure of the cryogenic bath. This allows the Gemini VII 2390p to rapidly measure adsorption isotherms and determine the pore volume, area, and size distribution of mesoporous materials. The Gemini VII 2390 Series analyzers provide rapid surface area analysis. The unique balanced design allows BET surface area to be measured using nitrogen for a broad range of materials. The Gemini offers precise measurements of low surface area materials using nitrogen. The determination of micropore volume,...

Accessories Sample Preparation Devices Micromeritics offers numerous sample preparation devices for surface area and pore volume analysis. These devices combine flowing gas and/or vacuum with heat to remove atmospheric contaminants, such as water vapor and adsorbed gas, from the surface and pores of the sample. The quality of the data produced by surface area and pore volume analyses depends greatly on the cleanliness of the sample surface. All of Micromeritics sample preparation devices accept He, N2, Ar, and other non-corrosive gases. The SmartPrep™ 065 is a flowing-gas degassing unit...

*Due to continuous improvements, specifications are subject to change without notice.

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