Ya'U Sabo Ajingi

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Questions related from Ya'U Sabo Ajingi

how can i identify a particular pigment and its concentration from the spectral peaks of fluorescence spectrophotometer??

I am working with Fluorescence spectrophotometer (Model:F-2700 FL) to determine concentration of chlorophyll a and carotenoids in cyanobacteria. I set up the excitation and emission wavelength...

20 June 2020 5,771 0 View

Why DPPH antioxidant assay gives negative percentage inhibition?

I used different concentrations of a sample, and at a lower concentration i obtained negative percentage of DPPH inhibition, why the negative value please, thanks.

10 September 2019 8,370 6 View