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pro vyhledávání: '"W. I. Miller"'
Publikováno v:
Clinical pharmacy. 2(5)
Publikováno v:
Proceedings, annual meeting, Electron Microscopy Society of America. 44:68-69
The main elemental constituents of biological material - C,H,N,O - are the same elements found in typical embedding materials. Because of this the contrast of unstained biological material is very poor. Additionally, electron scattering by low Z atom