atomic mass unit

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  • noun

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unit of mass for expressing masses of atoms or molecules

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References in periodicals archive ?
So while most mass specs can distinguish between compounds weighing between 407 and 408 atomic mass units (amu) and between 408 and 409 amu, for example, the FT-ICR-MS can detect a substance with a mass of 407.
Mass number of an isotope is equal to the numerical value of its mass, measured in atomic mass units (a.
The largest protein known, titin weighs in at 3 million atomic mass units, or 3 million times the weight of a hydrogen atom.
But this element has an atomic mass that is more than 200 atomic mass Units (amu).
Dermatrends' proprietary enhancer system has also been tested on large molecule drugs with weights up to 1400 atomic mass units (amu) and it has received separate patents for its ability to deliver large molecule peptide drugs through the skin.