LCQ contamination

Denise A. Meagher (wenzed@rockvax.rockefeller.edu)
Thu, 18 Nov 1999 10:10:12 -0400

Hello all,

We're seeing lower MW peaks on our LCQ in the range
200-500 Da even when spraying a blank. Does anyone
else have this problem. The largest of the peaks
seen are at 254 Da and 299 Da. Our instrument is
equipped with a nanospray.

Thanks for any help.

Denise

Denise A. Meagher
Protein Chemisty Coordinator
Protein/DNA Technology Center
The Rockefeller University
1230 York Avenue, Box 105
New York, NY 10021

Phone: 1-212-327-7525
FAX: 1-212-327-8620
email: wenzed@rockvax.rockefeller.edu