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Ringer's Solution Recipe - ThoughtCo Ringer's solution is a special salt solution made up to be isotonic to physiological pH. It is named for Sydney Ringer, who determined that the liquid around a frog's heart must contain a set proportion of salts if the heart is to remain to beat (1882 -1885). An Alchemists Glossary of Terms, Definitions, . I Iceland Spar (Calcite) A particular crystal form of Calcium Carbonate (CaCO3). Icy Butter . Antimony Chloride (SbCl3). Igneous Fluid . a postulated Elastic Fluid sometimes used synonymously with Caloric (matter of heat), sometimes with Phlogiston (matter of fire), and sometimes as a substance with the postulated properties of both. Critical titer test | definition of critical titer test by ... 2. A method of examination, as to determine the presence or absence of a definite disease or of some substance in any of the fluids, tissues, or excretions of the body, or to determine the presence or degree of a psychological or behavioral trait.    Read More