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)
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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