• 1 January 1976
    • journal article
    • research article
    • Vol. 78  (2) , 131-148
Abstract
The agarfiltration method, published by Kellenberger and Arber, was adapted to negative stain with sodium phosphotungstate and uranyl acetate. The technique is described in detail including all recent improvements. The precision obtainable in particle counts is discussed for agarfiltration and sprayed droplets.

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