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Measurement of increased uptake of osmium in skin and in a gelatin model ‘tissue’ treated with tannic acid
Author(s) -
Caceci Thomas,
Frankum Kelly E.
Publication year - 1987
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.1987.tb02823.x
Subject(s) - tannic acid , osmium , gelatin , chemistry , fixation (population genetics) , nuclear chemistry , biochemistry , organic chemistry , ruthenium , gene , catalysis
SUMMARY The effect of tannic acid (TA) on the deposition of osmium was studied in discs of hamster skin and in fixed gelatin. Pieces of skin treated with 1·0% TA before OsO 4 fixation absorbed almost twice as much as untreated pieces. Gelatin, used here as a model ‘tissue’ showed an even greater degree of enhancement. Treated gelatin capsule halves and strips took up 4–6 times as much osmium as untreated ones. The deposition of osmium was verified by neutron activation analysis.