Date: Tue, 7 Jan 1997 11:22:42 -0800 (PST)
From: "PPMAL (Hathaway/Krapf)" <ppmal@cco.caltech.edu>
To: "ABRF Hypermail (Dirk Krapf)" <abrfhyp@cco.caltech.edu>
Subject: re: MALDI (fwd)
Date: Mon, 6 Jan 1997 16:11:37 -0800 (PST)
From: "M. Hackett" <mhackett@u.washington.edu>
To: Recipients of ABRF List <abrf@aecom.yu.edu>
Cc: Recipients of ABRF List <abrf@aecom.yu.edu>
Subject: re: MALDI
Gary and others:
We have been playing around a lot lately with Ken Walsh's (early
design) Perseptive Voyager Elite instrument, which has now been
retrofitted with DE and a number of other less major improvements. John
Lennon will get into specifics in his tutorial at the ABRF meeting in
Baltimore, but resolving isotopes for peptides under roughly 2000 u seems
routine (I don't run the instrument with my own hands). With the addition
of more stable power supplies and the faster digitizer mentioned in a
previous posting, I fully expect more improvements on this particular
instrument in the near future. We also are putting higher capacity rough
pumps on our system, but the verdict is still out as to how much that will
gain us in faster pump down times, ultimate vacuum, etc.
Murray Hackett
Department of Medicinal Chemistry
Box 357610
University of Washington
Seattle, Washington 98195
(206) 616-4586
fax (206) 685-3252