22 January 2021 2 9K Report

Hi guys,

I'm looking for a water-soluble dye which is not surface inactive in order to observe (water in oil) emulsions; I don't prefer to use oil-soluble dyes.

I've used rhodamin123, fluorescein and calcein so far, however, they are all surface active so that the interfaces of emulsions highlight very strongly.

Does anyone know if there is a surface inactive water-soluble dye?

Thanks.

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