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A Preparative Technique for Electron Microscopic Examination of Colloid Particles

Published online by Cambridge University Press:  01 July 2024

R. S. B. Greene ,
P. J. Murphy ,
A. M. Posner  and
J. P. Quirk
R. S. B. Greene
Affiliation:
Department of Soil Science and Plant Nutrition, Institute of Agriculture, University of Western Australia, Nedlands, W.A. 6009, Australia
P. J. Murphy
Affiliation:
Department of Soil Science and Plant Nutrition, Institute of Agriculture, University of Western Australia, Nedlands, W.A. 6009, Australia
A. M. Posner
Affiliation:
Department of Soil Science and Plant Nutrition, Institute of Agriculture, University of Western Australia, Nedlands, W.A. 6009, Australia
J. P. Quirk
Affiliation:
Department of Soil Science and Plant Nutrition, Institute of Agriculture, University of Western Australia, Nedlands, W.A. 6009, Australia
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Abstract

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Adsorption of clay particles from very dilute aqueous suspensions onto positively charged films (Cytochrome C) on carbon coated support grids has been used to obtain well dispersed samples of the particles suitable for detailed electron microscopic examination. The natural negative charge of the carbon coated grid was used for ferric polycations and precipitates.

Résumé

Résumé

L’adsorption de particules d’argile en suspension aqueuse très diluée sur des films chargés positivement (cytochrome C) déposés sur des grilles support recouvertes de carbone a été utilisée pour obtenir des préparations de particules bien dispersées adaptées à une étude détaillée au microscope électronique. La charge négative naturelle des grilles recouvertes de carbone a été mise à profit dans le cas des polycations et des précipités ferriques.

Kurzreferat

Kurzreferat

Die Adsorption von Tonteilchen aus sehr verdünnten wässrigen Suspensionen an positiv geladenen Filmen (Cytochrom c) auf kohlenstoffbeschichteten Trägergittern wurde benutzt, um gut dispergierte Proben der Teilchen für eine eingehende elektronenmikroskopische Untersuchung zu erhalten. Die natürliche negative Ladung der kohlenstoffbeschichteten Gitter wurde für Eisen-III-Polykationen und Niederschläge benutzt.

Резюме

Резюме

Адсорбция частиц глины из очень разбавленных водных суспензий на положительно заряженные пленки (цитохром С) на опорных решетках с угольным покровом для получения образцов с хорошо диспергированными частицами использовалась для детального исследования под электронным микроскопом. Естественный отрицательный заряд решетки с угольным покрытием использовался для адсорбции железистых поликатионов и для осаждений.

Type
Research Article
Information
Clays and Clay Minerals , Volume 22 , Issue 2 , April 1974 , pp. 185 - 188
Copyright
Copyright © The Clay Minerals Society 1974

References

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