Thanks Mr. Moyad and Mr. Mohammad. Dear Mohammad my samples are ZnO nanoparticles. Is it fine if I am st che serial dilution of np is carried out from 1000 microg/ml till 7.8 microg/ml or 100 micro g/ml till 5 microg/ml.
Dear Prashanth, it'll be best to use 10 fold dilutions starting at lower concentration. May be from 0.01-100 µg/ml range. Select the broad range and narrow down eventually.