ORGLIST:Ultrasound bath

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From: peter walla (peter.walla$##$post.sk)
Date: Mon Jul 14 2003 - 05:13:35 EDT

Hi Dear Kolleagues!
I want to please you for kind advice. We want to buy an ultrasound bath. I have heard, there is best frequency optimised for best yields of reactions not depending on the substrate (or type of the reaction). What I dont understand, in different publications everybody use different frequency what is in contrary to use fixed frequency for all of the reactions.
We will need the bath for Grignard reactions, insertion of Rieke´s zinc dust into C(aryl)-Br bond or for dissolving a sample in solvent to inject it into HPLC.
Could you please refer me to some good review where is all I need written?
I thank you very cordially in advance!
Peter Walla

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