Brodie's Fluid
Historical document, translated for reference. It reflects medical knowledge of the 1920s–30s and is not medical advice.
Summary
Brodie's fluid is a specialized liquid used to fill manometers in gas microanalysis devices such as respirometers. Its specific gravity and composition are carefully calibrated to facilitate pressure calculations.
Encyclopedia entry (1928–1936)
BRODIE'S FLUID (Brodie), is used for filling manometers in instruments employed for gas microanalysis, for example, in various respirometers. Its composition is: 23 g of NaCl and 5 g of sodium cholate per 500 cc of water. To protect against bacteria, an alcoholic solution of thymol is added until it has a distinct odor. Advantages: it easily and uniformly wets the walls of the manometric capillaries; its specific gravity is selected such that 10,000 mm corresponds precisely to 760 mm Hg, which greatly facilitates calculations.
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Cite this page
“Brodie's Fluid.” Soviet Medical Encyclopedia. English translation of Bolshaya Meditsinskaya Entsiklopediya, 1st ed. (Moscow, 1928–1936), ed. N. A. Semashko. https://sovietmedicalencyclopedia.pages.dev/article/brodies-fluid/