Hi Horacio,
you can find help in the following article: Hummel, W. and Kula,
MR. 1989; Simple method for small scale disruption of bacteria
and yeasts. J. Microbiol. Meth. 9, 201-209
If you have further problems, you can contact me via email:
riebel at ibt022.ibt.kfa-juelich.de,
good luck Bettina Riebel
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