RE: Stainless steel systems (fwd)
Ombudsman account for AECOM (ombudsmn@aecom.yu.edu)
Tue, 28 Jul 1998 17:06:28 -0400 (EDT)
It is my understanding as stated below that the contact surface area of the
frits is an excellent place to catch or inactivate proteins such as
phosphoproteins and kinases. The nitric acid trick is to clean and passivate
the SS for resistance to corrosion. Overnight EDTA treatment can be used to
passivate the SS for lesson the chances of P-proteins sticking and the leaching
of metals from the SS.
The SS frits can easily be replaced with plastic ones from various vendor such
as Upchurch.
No company endorsement is given nor implied.