Method for Determination of Oxygen-18 Content of Inorganic Phosphate

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Science  05 Dec 1958:
Vol. 128, Issue 3336, pp. 1434
DOI: 10.1126/science.128.3336.1434


The reaction of inorganic phosphate and mercuric cyanide at temperatures from 240° to 300°C leads to the quantitative conversion of the phosphate oxygens to carbon dioxide. This report describes the proper conditions for the advantageous use of this reaction for the determination of the oxygen isotope composition of the inorganic phosphate.