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An evaluation of the Miller method for dissolved oxygen analysis
Author(s) -
ELLIS J.,
KANAMORI S.
Publication year - 1973
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.1973.18.6.1002
Subject(s) - titration , sodium hydroxide , oxygen , chemistry , sodium , potassium hydroxide , chromatography , inorganic chemistry , organic chemistry
The Miller and Winkler methods for dissolved oxygen determination are compared over a range of salinities and oxygen levels. By performing the Miller titration using a capillary sidearm flask, atmospheric oxygen may be excluded and a precision of ± 0.05 mg O 2 liter −1 obtained. The Miller end point is highly dependent on pH and on the ratio of sodium hydroxide to sodium potassium tartrate, so that carefully standardized conditions must be used to obtain accurate and reproducible results.