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Usually we see ug or ul because the printer didn't or couldn't print the correct symbol which is the greek letter for mu. It is a unit name denoting one millionth part. So a 1"mu"g is one milllionth of a gram.

A difficult question to answer here because we can't dusplay greek letters!!

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12y ago
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1w ago

In chemistry, "ug" generally stands for microgram, which is a unit of mass equal to one millionth of a gram (1 ug = 0.000001 g). It is commonly used to express very small amounts of weight or concentration in chemical analyses.

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Q: What does the term ug mean in chemistry?
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