Sorry to hear you are facing a problem. Have you been in touch with the local Support team ? They are ideally placed to assist you with this query.
Product Manager TEA Software and Accessories
Chromatography and Mass Spectrometry
Thermo Fisher Scientific
Hanna-Kunath-Str. 11 | 28199 Bremen | Germany
Phone +49 (0) 421 5493 275 | Fax +49 (0) 421 5493 200
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Thermo Fisher Scientific (Bremen) GmbH, Hanna-Kunath-Str. 11, 28199 Bremen, Registergericht: Amtsgericht Bremen, HRB 8628 Hb
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From: PLASMACHEM-L: Analytical Chem.(ICP's, DCP's, MIP's). [mailto:[log in to unmask]] On Behalf Of Prasad Lavisetty
Sent: Wednesday, June 27, 2018 3:10 AM
To: [log in to unmask]
Subject: [PLASMACHEM-L] High Background at 4.5 and 220 mass
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We have Thermo IcapQ ICPMS, recently we are facing problems with high background at mass 4.5 and 220. The performance at both standard and KED modes are failing in background (both mass 4.5 and 220). I cleaned the cones, nebulizer and spray chamber. I didn't touch the torch and lens. Still the performance is not meeting criteria. Can anybody suggest to solve this problem.
Any suggestions greatly appreciated.
Scientist, Teva pharmaceuticals, Inc.