Assertion: microscope's specimen | /r/HasProperty | stained with osmium tetroxide
Facets:
value: in the case of embedded sections
type: TEMPORAL
Source sentences:
text: The biological sample can be stained using either a negative staining material such as uranyl acetate for bacteria and viruses, or, in the case of embedded sections, the specimen may be stained with heavy metals, including osmium tetroxide.