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in subjects: "Phosphates"

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The Path of Carbon in Photosynthesis. XXI. The Cyclic Regenerationof Carbon Dioxide Acceptor

Photosynthesizing plants have been exposed to C{sup 14}O{sub 2} for short periods of time (0.4 to 15 sec.) and the products of carbon dioxide reduction analyzed by paper chromatography and radio autography. Methods have been developed for the degradation of ribulose and sedoheptulose. These sugars, obtained as their phosphate esters from the above C{sup 14}O{sub 2} exposures and from other experiments, have been degraded and their distribution of radiocarbon determined. The distribution of radi… more

Date: October 1, 1953

Creator: Bassham, J. A.; Benson, A. A.; Kay, Lorel D.; Harris, Anne Z.; Wilson, A. T. & Calvin, M.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Coulometric Determination of Phosphate

The conventional volumetric micro-determination of phosphate depends upon the precipitation of phosphomolybdate, filtration and washing of the precipitate, and titration with standard base. The method is slow and tedious, subject to many interferences, and is not applicable to samples containing less than 1-2 mg of phosphate. Other weak acid anions, such as carbonate or acetate, interfere in the method. Strong acid anions, such as nitrate, sulfate, and chloride do not interfere.

Date: November 19, 1953

Creator: Carson, W. N., Jr. & Gile, H. S.