Oolong Tea Extract (OTE) is a non-toxic and non-radioactive stain for electron microscopy. It is effective for fibrous connective tissues. OTE acts as a Tannin which allows complete post-stain lead citrate mordanting and gives satisfactory results. Powder is ideal for longer storage.
Platinum Blue is a newly developed non-radioactive substitutional EM stain when uranyl acetate is unavailable do to safety regulations. For various tissues Platinum Blue shows improved results compared to EMS UAR Replacement (E22405).
Small size (2ml), light-gauge, pre-scored amber glass ampoules. Ampoules containing OsO4 crystals are pre-cleaned and heat sealed in plastic bags to assure a contaminant-free solution.