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Electron Microscopy
The limit of resolution of the light microscope is roughly 2000 Å, which is insufficient to visualize cell organelles, viruses, and macromolecules of current interest. This is possible, however, with the electron microscope for which the limit is less than the diameter of а uranium atom (approximately 5 Å ) under special conditions... |
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Measurement of pH
Because essentially all biochemical reactions depend strongly on pH, it is important to be able to measure pH accurately. This is accomplished with a commercial pH meter by simply immersing two electrodes into a solution and reading the pH value on a dial... |
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