Question

What's the difference between acetocarmine and aceto orcein staining

Answer 1

Answer↔Acetocarmine preparation (1% solution) Carmine is a basic dye that is prepared from the insect Coccus cacti. Dissolve 10 g carmine (Fisher C579-25) in 1 L of 45% glacial acetic acid, add boileezers, and reflux for 24 h. Filter into dark bottles and store at 4°C.Aceto-orcein staining does not require the addition of iron ions. The staining prodedure is similar to the aceto-carmine method. Fixed material is transferred for an approprioate time to 1% aceto-orcein and then analyzed by the squash technique.


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