Stock solutions

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Stock solutions

Postby rachelj85 » Tue Nov 23, 2010 12:36 am

I am trying to create a stock solution of fungicide to add to my tissue culture plates at different ppms.
I need to know how much stock solution I will need to add to 250ml of media to have a concentration of 25ppm.
I prefer my stock solution to be 50 ppm or 100 ppm.... preferably 50 ppm.
My fungicide is 100%, and in powder form.

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