...M. Siemiatkowski; L. Plöen; N. Björkman Excess formaldehyde was extracted from embalmed animal cadavers by vascular perfusion or combined perfusion and percolation with 20% ethanol. The perfusion was undertaken through a carotid artery and the percolation through the serous body cavities for 1–2 h...

... for 72 h. Just after opening the body cavities, samples of air close to the organs were collected and analyzed for formaldehyde using a spectrofluorimetric method. The concentration of formaldehyde in the air samples was in goats 0.45 ± 0.44 µg/l (mean ± SD), cows 0.42 ± 0.29 µg/l and horses 0.43 ± 0.25...