Iowa State University Veterinarian Records, RS 22/6/0/9, University Archives, Special Collections Department, Iowa State University, http://www.add.lib.iastate.edu/spcl/arch/rgrp/22-6-0-9.html
At Iowa State University, the standard flotation method used to detect parasite eggs and cysts in dog feces has long been centrifugation using sugar (Sheather's) solution. In recent years, several kits using sodium nitrate have been available commercially. The purpose of this study was to compare the sugar centrifugation and sodium nitrate flotation methods in their ability to detect parasite eggs and cysts in dog feces.
Greve, John H.
"Comparison of sugar and sodium nitrate flotation methods for detection of parasites in dog feces,"
Iowa State University Veterinarian: Vol. 51
, Article 6.
Available at: http://lib.dr.iastate.edu/iowastate_veterinarian/vol51/iss2/6