Re: 3M Microporous Polyethylene Membranes for MALDI Re:[2] 3M

Rachel Loo (ogorzloo@umich.edu)
Thu, 14 May 1998 09:30:49 -0400

Joseph,

I'm glad you didn't go away! The microporous membrane message does
read a lot
like a standard sales offer of the type we don't like on the abrf and you
are right to
point out our distaste for sales offers. "Don't send any money now" and
"one-time
offer" usually do indicate sales pitches that we wish to discourage.

I responded because I believed that the intent of this particular
e-mail was to gauge whether production of a single lot of this material,
potentially of interest to some ABRF members, could be justified.
ABRF members had been calling to request this non-commercially available
material
following a nice talk by Amina Woods at the recent abrf meeting, and so
one production run was under consideration.

rachel

----------------
My only ties to 3M are that about 2 years ago they provided us with
membrane samples
for evaluation in our research. I offer no endorsements, etc. here. My
ideas and findings
regarding this material are in the literature, as are those of other
groups.

Rachel Ogorzalek Loo
2560 MSRB II
1150 W. Medical Center Dr.
Ann Arbor, MI 48109
ogorzloo@umich.edu
---------------------
---------------------------------
I have decided not to go away, but to stay try and get someone to
disabuse the difference between 3M's advertisement for there product and
the bulk E-mail package for $19.95 plus tax. I think what the business
world calls it, is target marketing vs. mass marketing. Some people in
this group have benefited from the generosity of this wonderful company
and probably the rest of us do not even care. So should this discussion
group allow some advertisement if the company has been generous to a
percentage of the group? If so, what percentage? I feel if you let one
company do this, you should allow them all to do it, as it would only be
fair.

I did look into the rules of the discussion group and it confirms my
viewpoint. ( http://www.abrf.org/ABRF/ListServe.html ) Perhaps others
want this rule changed? Not me!

Corporate world, go somewhere else to target your market!!!!!!!

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Joseph A. Fuselier
Peptide Research, SL12
Tulane School of Medicine
New Orleans, Louisiana 70112
504.585.6464
fx. 504.584.3586
devildog@mailhost.tcs.tulane.edu

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Following the the publication of each of these papers, 3M would receive
several requests for samples of the microporous membranes. Most recently,
Amina Woods from Johns Hopkins gave a lecture at the ABRF meeting in San
Diego, and again several requests have come to us. Dr. Woods had the best
results from a high density polyethylene, Lot 113-2. The material is not
commercially available at this time.

We are considering a one-time offer of an experimental polyethylene
membrane for your MALDI work. This material will have properties very
similar to Lot 113-2:

3M EXPERIMENTAL MALDI MEMBRANE Type X51
microporous high density polyethylene membrane
thickness

? 50
?m
surface features ? 2 ?m wheel side
? 4 ?m air side
filtration efficiency 0.1 ?m
sheet size 20 X 25 cm
sheets/pack 10
price/pack $500

If you believe that you would buy this material, were it available on a
one-time experimental basis, please send me a note indicating the number of
packs that you are quite confident you would purchase. Don't send a hard PO
at this time. We'll use the level of interest expressed to decide whether
or not to go ahead with this offer. Please respond within two weeks.