Automated, colorimetric methods for determination of nitrate plus nitrite, nitrite, ammonium and orthophosphate ions in natural water samples
By: by Ronald C. Antweiler, Charles J. Patton and Howard E. Taylor.
Contributors: Patton, Charles J.; Taylor, Howard E. 1945-; Geological Survey (U.S.)
Series: Open-File Report -- 93-638.; U.S. Geological Survey open-file report -- 93-638.
Publisher: U.S. Geological Survey; Books and Open-File Reports Section [distributor]
Published: 1996
Place of publication: Denver, Colo
Language: eng
Number of pages: 23
Subjects: Water -- Analysis; Water -- Nitrogen content; Colorimetric analysis
Notes: Includes bibliographical references (leaves 7-9).