POROTEC多站全自动重量法蒸气吸附分析仪GraviSorp 120用于测定多孔硅材料，符合行业标准DOI: 10.1002/cite.201700042。适用水蒸气吸附，吸附等温曲线，孔径分布项目。

Characterization of mesoporous materials today is routinely performed recording the adsorption isotherm of nitro gen at 77 K. The pore size distribution (PSD) can subsequently be determined using either thermodynamics or statisticalmechanics based approaches. While nitrogen has evolved as the reference adsorptive, other gases are often used to extractmore information from the isotherm. This contribution is focused on the calculation of a PSD from the water vapor isotherm.
It is demonstrated that water adsorption provides accurate results comparable to the standard nitrogen adsorption.

仪器主要特点：

1. 全自动测定：自动校准，自动测定
   

2. 操作简单易用

3. 软件操作简单，可以输出到EXCEL编辑。

4. 数据自动储存

5. 样品量大，最大可以到400克称样量。

6. 可以同时进行12个样品的测定。