Abstract
SMALL amounts of barium and strontium can be detected in the tissues of many insects by means of the extremely sensitive rhodizonate reaction. This reaction was described for microchemical use by Feigl1, who has since investigated its limitations2,3. In the present histochemical method, tissues are fixed in carefully neutralized 10 per cent formalin in 70 per cent alcohol and immersed for 30–60 min. in a freshly prepared 1 or 2 per cent solution of sodium rhodizonate, in distilled water or in phosphate buffer at pH 7. Excess sodium rhodizonate is afterwards removed by washing in dilute alcohol. Stained tissues can be sectioned in the usual manner and permanent preparations obtained.
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References
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Waterhouse, D. F., Aust. J. Sci. Res., B 4 (in the press).
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WATERHOUSE, D. Histochemical Detection of Barium and Strontium. Nature 167, 358 (1951). https://doi.org/10.1038/167358a0
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DOI: https://doi.org/10.1038/167358a0
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