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1. Hey I just want to make sure that 2micro grams x10 microL^-1 is equal to 2mg dL^-1.

I worked this out by saying that 10micro L = 0.01ml
-> 20micro g ml^-1
-> 2000micro g dL^-1
-> 2mg dL^-1

Thanks

2. nope.

you have 2x10-6g in 10x10-6 l

that is the same as

2x10-6g in 1x10-5 l

to get to litres, multiply by 105

so you now have

0.2g per litre

or

0.02g per dl

which is

20mg per dl

(NB - it's your first step where the mistake is. You multiplied by 10 instead of 100 to go from 10 micro l to ml)

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Updated: December 9, 2010
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