cleaning C2 apertures on a FEG

[Esther Bullitt]

Hi,

Are there any chemical methods for cleaning Pt C2
apertures on a FEG?  

We flamed ours, and there are more imperfections
and dirt than before.  Has anyone tried sonicating
in NaOH?

Thanks,
Esther.
-- 

Esther Bullitt, Ph.D.
Assistant Professor
Dept. of Physiology & Biophysics, Room W302
Boston University School of Medicine
715 Albany Street (mail only;  couriers 
		  use 700 Albany Street)
Boston, MA  02118-2526

Email:      bullitt at bu.edu
Telephone:  617-638-5037           
Facsimile:  617-638-4041