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SPECTROSCOPIC MEMBRANE PERMEATION CELL FOR SIMULTANEOUS MEASUREMENTS OF GAS PERMEATION RATES AND INFRARED REFLECTION ABSORPTION SPECTROSCOPIC ANALYSIS OF MEMBRANE SURFACES
SPECTROSCOPIC MEMBRANE PERMEATION CELL FOR SIMULTANEOUS MEASUREMENTS OF GAS PERMEATION RATES AND INFRARED REFLECTION ABSORPTION SPECTROSCOPIC ANALYSIS OF MEMBRANE SURFACES
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机译:同时测量气体渗透率和红外反射吸收光谱的分光镜膜渗透池
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摘要
A permeation cell device includes a body component, a wire mesh support structure positioned in the body component, a membrane over the wire mesh support structure, a pair of compressible gaskets sandwiching the membrane, and a flange compressing the membrane. A spectroscopic device contains the permeation cell device. At least one mechanism simultaneously performs an infrared-reflection absorption spectroscopic analysis of a surface of the membrane as a fluid permeates on the membrane and measures a trans-membrane fluid permeation rate across the membrane. The wire mesh support structure may be configured to provide mechanical support to the non-opaque membrane at a pressure of at least 1 atm. The permeation cell device and the spectroscopic device may collectively create a pair of separate isolated compartments. The body component may include a material that is non-permeable to the fluid.
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