I need help to find the concentrations of each tested extract - dilution calc?

Chemistry
Tutor: None Selected Time limit: 1 Day

Extracts were added to DPPH at diff. concen. -need answers in ug/mL 

- initial concen. (stock)  of all extracts=20 mg/ml 

-samples initially had 100 ul DPPH each

The different quantities of herbal extracts added 5,10,20,35, and 50 μL  (+ 100 ul DPPH)

Jan 6th, 2015

Hi - I posted an answer to this question previously (and to your ANOVA question). Here's a link which you can use to compute concentrations of diluted solutions.

http://www.physiologyweb.com/calculators/dilution_calculator_mass_per_volume.html

Jan 6th, 2015

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Jan 6th, 2015
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Jan 6th, 2015
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