Determination of total dissolved nitrogen by persulfate oxidation

Authors
Hagedorn, F Schleppi, P
Citation
F. Hagedorn et P. Schleppi, Determination of total dissolved nitrogen by persulfate oxidation, J PLANT NU, 163(1), 2000, pp. 81-82
Citations number
5
Categorie Soggetti
Environment/Ecology
Journal title
JOURNAL OF PLANT NUTRITION AND SOIL SCIENCE-ZEITSCHRIFT FUR PFLANZENERNAHRUNG UND BODENKUNDE
ISSN journal
14368730 → ACNP
Volume
163
Issue
1
Year of publication
2000
Pages
81 - 82
Database
ISI
SICI code
1436-8730(200002)163:1<81:DOTDNB>2.0.ZU;2-K
Abstract
The alkaline persulfate oxidation, converting all N into nitrate, is an eas y and rapid method for determining total dissolved nitrogen. We found indic ations that atmospheric N is trapped during the oxidation step, which can b e impeded by: (1) using always the same type of autoclave bottle and a cons tant sample volume; (2) minimising the remaining headspace in the bottle; ( 3) closing the bottle caps tightly for autoclavation; and (4) determining b lanks for each test series.