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Revista de Saúde Pública

On-line version ISSN 1518-8787

Abstract

FERREIRA, Claúdio Santos  and  CARVALHO, Maria Esther de. Clearing of fecal smears. Rev. Saúde Pública [online]. 1972, vol.6, n.1, pp.19-23. ISSN 1518-8787.  http://dx.doi.org/10.1590/S0034-89101972000100003.

Under the same conditions of turbidity (transmittance = 50%) the average amounts of feces per unit smear area are increased when diluents with high refractive indices are substituted for water. Such increments, calculated as factors, were on the average: 3.17 for 54% sucrose (n = 1.438); 1.95 for 50% glycerol (n = 1.411); and 1.50 for 30% sucrose (n = 1.385) aqueous solutions. Photoelectric absorptiometry was found adequate for evaluating the efficiency of fecal smear clearing processes.

Keywords : Fecal smears; Clearing; Refractive index; Absorptiometry.

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