Sources of vitamin mixtures for media

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Abgeschickt von Peter Corkhill am 05 April, 2000 um 21:43:48

I do quite a lot of flasking and have been using Nitsch and Nitsch from Sigma. However, they have just stopped supplying it and have no alternative. A book from South Africa suggests a product called Polybion N (20 drops)and says this is available in Germany. Can anyone tell me where to get it or an alternative that works please.