From: Olwyn Byron <o.byron@bio.gla.ac.uk>
  To  : rasmb@alpha.bbri.org
  Date: Wed, 11 Nov 1998 13:53:16 +0100

dielectric constants

Dear RASMBers

We are running some preliminary experiments in a DELSA (Doppler
electrophoretic light scattering analyser) instrument and would like to
know the dielectric constants (e) of some buffers that we're planning to
use. Specifically:

phosphoric acid
MES (2-(N-morpholino) ethanesulphonic acid)
phosphate
Tris
ethanolamine

We have looked in the Handbook of Chemistry and Physics and so far have
only found one value of e that is of any use to us- for acetic acid e =
6.15.

If anyone could fill in some of the gaps, we'd be very grateful.
Thanks and best wishes to all-

Olwyn Byron and Steven McDade


_____________________________________________________________________
Olwyn Byron
Division of Infection and Immunity
Institute of Biomedical and Life Sciences
Joseph Black Building, University of Glasgow
Glasgow, G12 8QQ, Scotland.

tel: +44 (0)141 330 3752  email: o.byron@bio.gla.ac.uk
fax: +44 (0)141 330 4600  web:   www.gla.ac.uk/Acad/IBLS/II/ob/ob.htm
_____________________________________________________________________