![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
Abstract
1. In a method to identify interior openings of unobstructed pores, they are stained with uranyl acetate.
2. Back‐scattered electron atomic number contrast imaging indicates the openings of those pores that have been penetrated by the stain, because of the enhanced back‐scattering arising from the atomic number difference between uranium and calcium. Morphologically identical structures that are unstained do not contribute to the total effective pore area.