Name of teh unit pM

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Name of teh unit pM

Postby Fabian » Sat Apr 16, 2005 10:18 pm


in an abstract I found teh Unit pM. What for an Unit is this? What is pM for an abbreviation?



Postby Guest » Sat Apr 16, 2005 11:43 pm

Picomolar? The molarity of a solution is the number of moles of a substance in liter of solution. 1 M NaCl would be 1 mole of NaCl dissolved in enough water that the total volume of solution would be 1 L

In the SI, molarity, molality, and normality are considered obsolete and not recommended. NIST SP 811 recommends mol/L or mol/dm^3 to replace M for molarity. I believe ISO 31-8 is consistent with SP811. However, I still see a ton of chemistry references to these three terms on the web.

A 1 pM solution would be very dilute, 1 picomole per liter of solution.

Postby Guest » Sun Apr 17, 2005 7:25 pm

Thanks a lot, picomolar per liter makes senese.

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