Methods of Analysis by the U.S. Geological Survey National Water Quality Laboratory
--Determination of Total Phosphorus by a Kjeldahl Digestion Method and an Automated Colorimetric Finish that
Includes Dialysis, U.S. Geological Survey
Open-File Report 92-146, 11 p.
By Patton, Charles J., and Truitt, Earl P.
U.S. Geological Survey
Open-File Report 92-146
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