Sara Asgari

5 Questions 7 Answers 0 Followers

Questions related from Sara Asgari

White precipitation in virus inactivation?

Hi all, I have a problem regarding influenza virus inactivation with Formaldehyde. After incubation in cold room (4-8 ◦C), a white precipitate is formed. I haven’t got the problem before. Have you...

06 March 2017 9,519 7 View

My filter fouling problem

Hi all, I have a question regarding Filter Fouling. What is your suggestion for cartridge Filters that are fouled very quickly? More Information: Filter cartridge pore size: 0.45 micron Membrane...

06 March 2017 3,267 4 View

What should I do as I am losing a high percentage of proteins during the Diafiltration step ?

Hi all, I am currently working on purifying influenza viruses. After having taken the splitting step I am now facing some problems in the Diafiltration step. My aim in diafiltration is to replace...

29 August 2015 7,632 2 View

What is the best way to verify the integrity of membrane filters?

Dear all,I really appreciate if you could help me with a problem that I am confronted with these days.I need some Information about "Filter Integrity Test methods". What is the best way to verify...

21 February 2015 7,085 6 View

What is the best cut off for purifying influenza virus?

I am going to concentrate and purify influenza virus from allantoic fluid. My process is Egg-based production of Influenza Vaccine (split virion, inactivated). My filtration process is Tangential...

22 June 2014 4,073 2 View