安东帕康塔气体渗透法孔径分析仪POROMETER 3G

Porometer 3G micro测量聚合物支架的孔径分布

使用Porometer 3G利用毛细管流动法原理测试了一种医用工程膜的孔径分布，并比较了两种蒸汽压不同、表面张力相似的浸润液的测试结果。根据ASTM F316和F2450，最大的通孔孔径是由泡点确定的。

介孔孔径分布的计算方法

由于多孔材料的复杂性，不存在统一的孔径分布计算方法。无论是采用经典方法对微、介 孔孔径分布计算，还是采用新兴的DFT方法对孔宽进行计算，孔模型的选择和公式中有关物理参 数值对孔径分布结果都有很大影响。

安东帕康塔__孔径分析方法和其重要性

自然界中存在种类繁多的多孔材料，这些材料在工业、医疗以及自然进程等众多领域是不可或缺的。如催化剂的孔可有效增加化催化反应发生的接触面积。与此同时，催化剂活性位上的反应物和产物也需要通过多孔结构进行扩散和传递。医用药片上的孔与它的溶解速率息息相关。过滤膜上的孔决定了流体中哪些尺寸的颗粒可以通过膜或者被过滤。以下将为您详细介绍孔的分类和不同尺寸的孔常见的表征方法。

安东帕康塔如何对MOF材料进行孔径分析

从事固体研究领域的专家需要了解金属有机骨架，即MOFs材料的孔隙结构。安东帕康塔的Autosorb iQ-MP和XR型号就是研究这些具有挑战性材料的最佳精密分析仪器。

Micropore Area and Volume by the t-Plot Method

The t-plot allows one to determine the micropore volume and micropore area from a gas sorption isotherm without the need to measure the low pressure micropore-filling portion of the isotherm. The t-method is applied to the range of multi-layer adsorption and can be applied to isotherms from instruments such as the NOVA series and QUADRASORB evo that do not have the low pressure transducers or the turbomolecular pump.

Differentiating Filters/Membranes by Capillary Flow Porometry

Mechanical filters/membranes are devices that use porous media, such as paper, foams, synthetic fibers, cotton, or spun fiberglass, to remove solid particles and other contaminants in applications requiring clean streams of gases or liquids. The Porometer 3G series of instruments can measure and analyze the pore characteristics of materials used in different filtering applications from contaminant removal to medical devices and electronic fabrication. This application report compares and contrasts the results for two similar looking filters used to remove contaminants from an in-house air source.

Surface Area of Magnesium Stearate Using the Volumetric Method

Magnesium stearate, a waxy, lamellar (platy) solid, is a widely used excipient in pharmaceutical technology. Primarily, magnesium stearate is added to a formulation in order to modify compaction behavior and reduce ejection forces from tablet dies and is available in a range of grades having similar or different surface area. The NOVAtouch is ideal for specific surface area measurements according to USP <846> Method II (volumetric method) and the well-known BET [1] calculation described therein.

Pore Size Measurement of Metal Organic Framework Materials

Pore Size and Pore Volume Measurement of Metal Organic Frameworks

Milk Powder Characterization

Characterization of Milk Powder – Chapter 1: Dissolution of Infant Formula and the Final Milk Product