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The true molecular biologist/protein chemist will recall instantly the molecular mass of sodium chloride to two decimal places. This may easily be verified in the lab.

That one d.p. is sufficient for the sensitivity of our instruments and applications has no bearing on the matter.

Comments

We use the Eppendorf Biophotometer for quantitating DNA concentrations. It's a cute little spec that has a bad habit of spitting out concentrations with as many sig figs as digits on the display. I have found tubes of DNA in the freezer here labelled "1298.23 ng/ul". Hilarious.

Heh, throw in your neighborhood electrophysiologist for this as well.

It comes from making so many Ringer's type solutions!

Also, I'm enjoying the posts in your blog quite a lot. It's in the RSS reader!

Cheers

Cheers Nat! Don't forget to check out my other place, too.

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About the Rat

Black Knight is interested in the interaction of science (as a day job and as a way of thinking) with his family, the wider community and literature. And tormenting students. Frequently polemical, sometimes serious, and hopefully always entertaining more

blackasknight@gmail.com

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  • bk said "Cheers Nat! Don't forget to check out my other pl"
  • Nat Blair said "Heh, throw in your neighborhood electrophysiologis"
  • Steve Matheson said "We use the Eppendorf Biophotometer for quantitatin"

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