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measurement units of DNA


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#1 noyara

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Posted 11 July 2010 - 04:24 PM

Dear All
G'day..

I'm asking about Measurement Units of DNA,

In some journals & websites there are some units used for DNA and RNA calculation, I don't know what its mean, and when I search about it, I don't find good information
I hope if you know about it..

For example:
this phrase:

Fill in answers to 13 and either 4 (for converting ng/ml to pM) or 5 (for converting pM to ng/ml).
what mean pM..?

and also this one:


What is the specific activity of your radiolabeled nucleotide stock (Ci/mmol)?

What is the concentration of your radiolabeled nucleotide stock (mCi/ml)?

what means by mCi, Ci

and many others....
is there any website, pdf, books or anything that describe the meaning?

Waiting for your kind response,..
And regards

#2 hobglobin

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Posted 12 July 2010 - 10:01 AM

This are commonly used abbreviations for the conversion of concentration units, in your examples
nanograms/microlitre to picomol/litre (p = pico = 10-12; M = mol/litre)

Ci is the abbreviation for "Curie" a unit of radioactivity, defined as 1 Ci = 3.71010 decays per second or becquerels. mCi is then microCurie

The Lab-FAQs from Roche might answer many of your questions
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#3 Trof

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Posted 13 July 2010 - 03:54 AM

Ci is the abbreviation for "Curie" a unit of radioactivity, defined as 1 Ci = 3.71010 decays per second or becquerels. mCi is then microCurie

Isn't mCi rather millicurie than microcurie? Microcurie would be μCi or uCi.

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#4 pito

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Posted 13 July 2010 - 05:03 AM

I think its is indeed milli and not micro ()

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#5 hobglobin

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Posted 13 July 2010 - 10:04 AM

I think its is indeed milli and not micro ()

Oppppssss you are of course right...I shouldn't post such stuff during an overheated evening... :)
One must presume that long and short arguments contribute to the same end. - Epicurus
...except casandra's that belong to the funniest, most interesting and imaginative (or over-imaginative?) ones, I suppose.




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