1. Biodegradability of the nitrocellulose with diphenylamine was investigated in this paper.

2. Electron transfer properties of dipHenylamine was studied by cyclic voltammetry in 1,2-Dichloromethane elected from TKC Antiknock.

3. Tests with diphenylamine, formaldehyde, and staining with acridine orange as well as the curves of thermal denaturation showed that this strain of virus had a single stranded DNA.

4. At last , it titrates with ferrous ammonium sulfate, using the sodium diphenylamine sulfonate as a catalyst.

5. The reaction of CIr ( NO ) Cl 5 - and diphenylamine has been investigated by spectrophotometric method.

6. Objective: An analytic method SPE - HPLC was developed to determine residue of diphenylamine in water.

7. METHOD: Using Chapman rearrangement to prepare 2, 6? dichloro? diphenylamine.