Assessing Total Nitrogen in Surface-Water Samples?Precision and Bias of Analytical and Computational Methods

U S Department of the Interior

ISBN 10: 149748555X / ISBN 13: 9781497485556

Verlag: Createspace Independent Publishing Platform, 2014

Beschreibung

This item is printed on demand. New copy - Usually dispatched within 5-9 working days 162.

Bestandsnummer des Verkäufers C9781497485556

Bibliografische Details

• Titel: Assessing Total Nitrogen in Surface-Water Samples?Precision and Bias of Analytical and Computational Methods
• Verlag: Createspace Independent Publishing Platform
• Erscheinungsjahr: 2014
• Sprache: Englisch
• ISBN-10: 149748555X
• ISBN-13: 9781497485556
• Einband: Paperback / softback
• Zustand: New

Über diesen Titel

Inhaltsangabe

The characterization of total-nitrogen (TN) concentrations is an important component of many surface-waterquality programs. However, three widely used methods for the determination of total nitrogen—(1) derived from the alkaline-persulfate digestion of whole-water samples (TN-A); (2) calculated as the sum of total Kjeldahl nitrogen and dissolved nitrate plus nitrite (TN-K); and (3) calculated as the sum of dissolved nitrogen and particulate nitrogen (TN-C)— all include inherent limitations. A digestion process is intended to convert multiple species of nitrogen that are present in the sample into one measureable species, but this process may introduce bias.