par Watillon, André ;van Grunderbeeck, Heinrich F.
Référence Bulletin des Sociétés chimiques belges, 65, 7-8, page (657-663)
Publication Publié, 1956
Article révisé par les pairs
Résumé : In a preceding paper, we proposed a counting method permitting the precise determination of particle sizes in lyophobic colloids. Results obtained by this method in the case of Selenium hydrosols were controlled by electron‐microscopy. The latter technique was also used in verifying isodispersity of the suspensions. In the present paper, we propose a simple spectrophotometric method — calibrated by above mentioned absolute techniques — for discriminating between isodispersed and polydispersed Selenium Sols and for rapid estimation of the average size of the Seleninium particles. Copyright © 1956 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim