Abstract
Summary
Nineteen different substrates were used in this study on the histochemical specificity of phosphatases. With 18 substrates no indication of the presence in paraffin-embedded mammalian tissues of phosphatases other than the common non-specific alkaline and acid variety was found. With one of the substrates, p-chloranilidophosphonate, a strikingly different picture of enzymatic distribution was observed in the acid range, but otherwise the pattern of distribution of enzymatic activity in any given organ was constant and independent of the substrate used.
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