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Zinc Sulphate technique. Advantages:Zinc sulphate centrifugal flotation technique is useful for the recovery of protozoan cysts and helminthes eggs.Disadvantages:Large trematode eggs, some tape worm eggs, and infertile Ascaris lumbricoides eggs are not concentrated by this method.. Raed Z. Ahmed,
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1. Zinc Sulphate method Medical Parasitology Lab.
2. Zinc Sulphate technique Advantages: Zinc sulphate centrifugal flotation technique is useful for the recovery of protozoan cysts and helminthes eggs. Disadvantages: Large trematode eggs, some tape worm eggs, and infertile Ascaris lumbricoides eggs are not concentrated by this method.