I need help to find the concentrations of each tested extract for my experiment

User Generated

Fvqarl Funl

Science

Description

Extracts were added to DPPH at diff. concen. and the initial concentrations (stock)  of all extracts is 20 mg/ml 

Also, the all  samples had 100μL DPPH individually

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

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Explanation & Answer

5 micro l in 100 micro l.    is equal to 5/100 = 0.05 l/l concentration

10 micro l in 100 micro l is equal to 10/100 = 0.10 l/lconc

Similarly 20 = 0.2,   35 = 0.35 and 50 = 0.5 l/l

Answer: 0.05, 0.1, 0.2, 0.35 and 0.5 l/l concentration



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