I've recently started using home-made glycerol jelly as my mounting medium---composition gelatin powder, water, and glycerol. I keep it in the fridge at 4 degrees and melt it before use. It's great for dark field images, but I'm worried about bacterial growth. I haven't had any problems yet, but I was wondering if someone else out there uses this and what they do to prevent the growth of mold, etc... and how long do you keep it before you toss it? Thanks, Pumla Pamla-Gutter (614)292-4046
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