Nelson, D M A stable isotope trace method to measure silicic acid uptake by marine phytoplankton. [electronic resource] - Analytical biochemistry Mar 1977 - 139-47 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, Non-P.H.S. ISSN: 0003-2697 Standard No.: 10.1016/0003-2697(77)90017-3 doi Subjects--Topical Terms: Isotope LabelingMass Spectrometry--methodsMathematicsPhytoplankton--metabolismPlankton--metabolismSeawaterSilicic Acid--metabolismSilicon Dioxide--metabolism