Determination of the Total Nitrogen Content of Organic Substances Through the Ammonia Formed in Oxidation by Persulfate
作者:
IbolyaM. Perl,
MargitP. Szakács,
期刊:
Analytical Letters
(Taylor Available online 1984)
卷期:
Volume 17,
issue 11
页码: 1325-1333
ISSN:0003-2719
年代: 1984
DOI:10.1080/00032718408065309
出版商: Taylor & Francis Group
关键词: nitrogen content determination;persulfate oxidation;ammonia distillation
数据来源: Taylor
摘要:
A new concept for the analytical application of persulfate oxidation in alkaline media is presented: The persulfate oxidation of organic compounds has been utilized to determine their nitrogen content. The ammonia formed in the oxidation coupled distillation was measured acidimetrically with an accuracy of ± 0.5 % (rel.). The applicability of the method proposed is shown in the determination of the organically bound nitrogen content of numerous model substances as well as industrial and natural matrices: vinasse, aluminate liquor, white- and soy-bean samples, eggprotein.
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