![]() Therefore, rate reduction of a chemical reaction upon addition of DPPH is used as an indicator of the radical nature of that reaction. ĭPPH is a well-known radical and a trap ("scavenger") for other radicals. The commercial powder is a mixture of phases which melts at ~130 ☌. DPPH has two major applications, both in laboratory research: one is a monitor of chemical reactions involving radicals, most notably it is a common antioxidant assay, and another is a standard of the position and intensity of electron paramagnetic resonance signals.ĭPPH has several crystalline forms which differ by the lattice symmetry and melting point. It is a dark-colored crystalline powder composed of stable free radical molecules. DPPH is a common abbreviation for the organic chemical compound 2,2-diphenyl-1-picrylhydrazyl.
0 Comments
Leave a Reply. |