Imen Ghozzi

4 Questions 8 Answers 0 Followers

Questions related from Imen Ghozzi

Why from 50 uM of ascorbic acid the percentage of inhibition decreases?

Hello friends I evaluated the anti-free radical activity DPPH of ascorbic acid I repeated it several times I obtained the same results I did not understand why from 50 uM the obtained density...

05 September 2021 8,135 4 View

How can i calculate the mass in grams for each pure compound?

Hello I would like to measure the antioxidant activity of two pure compounds A and B (of plant origin), then I will make a comparison between the two the formula I used to calculate the mass in...

05 July 2021 9,224 2 View

How i can calculate the IC50?

Hello friends I work on the anti-free radical activity DPPh of a plant extract I obtained a curve and I will calculate IC50 from the formula ax + b but before the dosage I made a dilution of the...

24 April 2021 5,107 7 View

Please how to make a standard scale with ascorbic acid?

I would like to do the DPPH antioxidant test I prepare a stock solution of plant extract with a concentration of 1 mg / ml then I make the dilutions in ug / ml to make a calibration range with...

19 March 2021 3,021 3 View