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Question

Posted on: March 6 2013

A specialist ORL of our hospital asks to prepare the next solution for filling the middle ear. Gentamycin 40mg/ml physiological buffer pH 6.5 ad 10ml

< br/> If we dissolve the gentamycin in a physiological buffer pH 6.5 (boric acid 1.54 g/borax 60mg for 100ml) decreases the pH to +/-5.

Answer

I would suggest to use a boric acid buffer with following compound: Boric acid 1.30 g and 10 aq. 800mg with pH = 8.