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A UREASE METHOD FOR UREA IN SEAWATER 1
Author(s) -
MCCARTHY JAMES J.
Publication year - 1970
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.1970.15.2.0309
Subject(s) - urease , photic zone , urea , seawater , ammonia , environmental chemistry , environmental science , chemistry , oceanography , nutrient , biochemistry , geology , phytoplankton , organic chemistry
A simple method for the quantitative determination of urea in seawater is described. It involves addition of urease and subsequent measurement of the liberated ammonia. Data are presented for coastal waters near La Jolla, California, and for coastal waters off central Peru. In the marine euphotic zone the cycle of supply and utilization of urea may be similar to that of ammonia.