(proteome Center) in Microbiology Dept., Faculty of Medicine,, Alex. University. Prof. Passant and Dr. Noha Abosseda are the person in charge, they have the Bruker ultraflex model of screening range Up to more than 150 KDa which suffice research needs of polymers (may be more than 100KDa). In my last visit 2014 my intenuation that they only focus on microorganisms screening that not exceeds up to 30KDa so they do not have the experience of screening polymers . I have a bad experience with them in one sample of polymeric composite identification that exceeds 100KDa. Screening such sample was done three times each time in certain range whenever I was asking for full range up to 159KDa. Finally if need me to pay the attention with you while dealing with them, I will be ready for this as there is no other ultraflex in our country.