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After acceleration and removal of electrons, the emerging positive ions are magnetically separated by mass and the C counts per second are collected.It is expected then, for a 5,570 year (1 half-life) or 11,140 year old (2 half-lives) sample that 125 or 63 counts per second would be obtained.
Phosphate is not contained in protein, but it is a primary constituent of DNA.Using scanning electron microscopy, they photographed what resembled actual protein fibers.This result was the same as that of a 2001 electron microscope study of mummified Using transmission electron microscopy, the investigators found that the fibers looked like recent bone proteins.But the long, stringy fibers that they photographed looked nothing like bacteria or bacterial colonies.Next, they found that the fibers absorbed the standard stain Aniline blue just as readily as modern soft tissue does. The researchers' amino acid analysis results were "potentially indicative of fibrous structural proteins, such as collagen…or its degradation products." The team's immunofluorescence procedures detected type I collagen, a hardy protein found in vertebrate connective tissue but not in bacteria.