How to deal with ARIA contamination?

Konz, Richard Richard.Konz at
Wed Jan 30 14:50:04 EST 2008

Hi Akos:


We have been using Mario Roederer's decontamination protocol on our 4
laser SORP Aria [in a BSL3 suite] for the last year with great results.
So far [knock on wood] no contamination at all.  The sorter has been
running without issue as well.

Here is the link to Mario's web page with the decontamination protocol:


Hope this helps.


Best regards,




Richard F. Konz, Jr.

Assistant Professor

Department of Medicine

Graduate Faculty, Immunology and Virology Program

Director, Flow Cytometry Core Facility

UMass Medical School

55 Lake Avenue North
Room S5-322

Worcester, MA 01655

Office: 508-856-1598

Lab:	508-856-3276

Pager:	508-722-0560

Email:	Richard.Konz at





From: akos.szilvasi at [mailto:akos.szilvasi at] 
Sent: Monday, January 28, 2008 2:56 PM
To: cyto-inbox
Subject: How to deal with ARIA contamination?


Dear FLOWers, 

We have a less than two years old (Special Order - UV equipped) ARIA
sorter that had an unrelenting sheath fluid contamination problem. The
recurring mysterious contamination existed from the arrival of the
sorter. We reported it multiple times. BD replaced a few parts of the
fluidics system but it kept the bugs out of the sheath only for 4-6
weeks at the time. Filter replacements, bleaching the system works only
temporarily. Our other Aria sorter, an older one, never had any such
symptoms. We use them in an identical fashion. 

One lab suggested to follow their solution (this is not an isolated
occurrence - not matter what they say) to fill the distilled water tank
with 70% ethanol so that the fluidics shut down procedure would fill the
lines with alcohol. That sounds good but no one could tell if this trick
has some detrimental effect on any parts of the fluidics system. Have
you used alcohol over night in the sorter? Did it cause any problem on
the long run? 

Any other solution? BD offers to replace the whole fluidics system for $

Best regards, 


Akos Szilvasi
NIBRI Core Laboratory Services
USCA, 601-5301
Novartis Institutes for BioMedical
Research, Inc.
100 Technology Square
Cambridge, MA 02139
Phone: +1 617 8717177
Email : akos.szilvasi at <mailto:akos.szilvasi at> 




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