Measurements and evaluation of concentration distributions in filter cake formed in dead-end ultrafiltration of protein solutions

Measurements by holographic interferomet

Measurements by holographic interferometry of concentration profiles in dead-end ultrafiltration of polyethylene glycol solutions

✍ J Fernández-Sempere; F Ruiz-Beviá; R Salcedo-Dı́az 📂 Article 📅 2004 🏛 Elsevier Science 🌐 English ⚖ 746 KB

An optical method (microscopic holographic interferometry) has been used to visualize concentration changes in the vicinity of the membrane surface while a polyethylene glycol 2000 (PEG) solution was ultrafiltered with a cellulose acetate membrane. This interferometric technique is based on the fact