[3dem] Vacuum pump for glow discharge purposes

[Lena Maria Muckenfuss]

Dear list members, 

we are about to purchase a "easiGlow” glow discharge system from PELCO for single-particle cryo-EM purposes and were wondering if anyone has experience with the supplied GD4 rotary vacuum pump, which is not oil-free. Are the concerns of oil leaking into the chamber true and is it worth purchasing an oil-free pump (e.g. Edwards XDS6i) instead? We would be very thankful about any experience you are willing to share. 

Best wishes, 

Lena

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Lena M. Muckenfuss
PhD student
Group of Prof. Martin Jinek
University of Zurich 
Department of Biochemistry
Winterthurerstr. 190
CH-8057 Zurich
+41 44 635 555 | 44-L-82
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