Posted by **Alyce** on Wednesday, March 18, 2009 at 5:18pm.

Could you list all of the metric prefixes? I consulted several online lists, and I could not find a prefix of "u." (my chart says ug/L) Thanks for clarifying this.

- Chemistry -
**DrBob222**, Wednesday, March 18, 2009 at 5:31pm
The "mu" stands for micro so your symbol is micrograms/L. Here is a complete list. Good site. Bookmark it.

http://physics.nist.gov/cuu/Units/

- Chemistry -
**bobpursley**, Wednesday, March 18, 2009 at 5:31pm
u should really be the greek letter mu, meaning micro, or 10^{-6}

If it appears here, it should be written as μ

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