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DETERMINATION OF RUBIDIUM IN SEAWATER 1
Author(s) -
Smith Raymond C.,
Pillai K. C.,
Chow Tsaihwa J.,
Folsom Theodore R.
Publication year - 1965
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1965.10.2.0226
Subject(s) - rubidium , potassium , seawater , flame photometry , photometry (optics) , chemistry , analytical chemistry (journal) , mineralogy , environmental chemistry , geology , physics , oceanography , astrophysics , stars , organic chemistry
Rubidium concentrations in seawater from various locations and depths to 3,900 m have been determined using two independent techniques—direct flame photometry and mass spectrometry. Results of these two techniques agree within estimated errors and indicate that the rubidium content in the oceans is uniform within ±8% with values varying about 120 µ g/liter. Sediment from the sea floor below a depth profile, analyzed for rubidium and potassium, gave a rubidium concentration factor of 150 and a potassium to rubidium ratio of 1,270.