Altra Hypersort Sorter

From: Daley, John F. - DFCI (John_Daley@dfci.harvard.edu)
Date: Mon Nov 01 1999 - 09:39:51 EST


Last Week, 
Barry and Ev Sherr at 
Oregon State University-COAS wrote:

Can you give us any information about the BC Altra flow cytometer. We're
particularly interested in fast sorting capability. Thanks in advance
for the information.


Works great. I have been sorting practically every day since we got the
ALTRA Hypersort up and running since mid august and havent had any major
problems as of yet. I generate a droplet frequency of around 90-95 K and
sort routinely anywhere from 10,000 to 30,000 cells per second. Purity is
quite impressive. There are more than a few occasions where the reanalysis
is 99.9 or 99.5% (no kidding!). With respect to recovery, the numbers the
counters say I have seem to accurately reflect what the users are counting
after I give them back the sorted populations and mirror what would be
expected based on starting population values and gated subpopulations. Most
impressive is the stability of the system, can sort many hours with little
if no adjustments necessary and have not had any major clogs (well one real
bad one... let's be real ) that could not be rapidly "declogged'. I will be
evaluating complex multicolor laser excitation high speed sorting in the
near future, and will be able to report on the performance of the Altra in
this mode.

Regards,
John Daley
Dana Farber Cancer Institute
Boston, MA 02115



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