W. P. R. T. Perera

5 Questions 3 Answers 0 Followers

Questions related from W. P. R. T. Perera

What are the validated methods to screening the antiviral activity of a drug except Bacteriophage inhibition assay ?

Due to some similarities of the life cycles of the different virus species, Bacteriophages can be used for the assessment of the antiviral activities of drugs without using the human infection...

04 June 2020 4,190 0 View

What changers can occur if Arsenobetaine (Organoarsenic) digested with an acid (Nitric acid) ?

Arsenobetaine is the non toxin organic form of Arsenic commonly found in fish.If muscle of fish samples subject to a acid digestion, will non toxic nature be changed

31 May 2020 9,284 4 View

Any explanation about the effect of the pH value on SARS-CoV-2 Virus activity ?

Some studies reveal that SARS-CoV-2 virus activity can be mitigated at the alkaline pH medium (above pH= 7.5). Any explanation about the mechanism or the Chemistry behind this phenomenon.

29 May 2020 9,545 3 View

What is the best technique / extraction method for extract sesquiterpene coumarins from oligo-gum resins of Ferula asafoetida ?

Phyto-chemicals such as Conferone, Samarcadin, Bdrakemin Farnesiferol A, Fernesiferol C and Galbanic acid can be isolated from Ferula asafoetida. suggest proper extraction methods and solvent to...

23 May 2020 6,533 6 View

Are there any WHO permissible limits for heavy metals in marine fish ?

Codex maximum level (ML) defined standards limits for Cd, Pb and Hg in fish. It is worth to find the permissible limits for other metals and metallic elements too. (As, Cr, Zn, Cu, Mn)

22 May 2020 1,900 4 View