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Automated analysis for nitrate by hydrazine reduction

Journal Article:

Abstract

An automated procedure for the simultaneous determinations of nitrate and nitrite in water is presented. Nitrite initially present in the sample is determined by a conventional diazotization-coupling reaction. Nitrate in another portion of sample is quantitatively reduced with hydrazine sulfate to nitrite which is then determined by the same diazotization-coupling reaction. Subtracting the nitrite initially present in the sample from that after reduction yields nitrite equivalent to nitrate initially in the sample. The rate of analysis is 20 samples/hr. Applicable range of the described method is 0.05-10 mg/l nitrite or nitrate nitrogen; however, increased sensitivity can be obtained by suitable modifications.
Publication Date:
Jan 01, 1967
Product Type:
Journal Article
Reference Number:
EDB-84-011296
Resource Relation:
Journal Name: Water Res.; (United Kingdom); Journal Volume: 1
Subject:
54 ENVIRONMENTAL SCIENCES; NITRATES; DIAZOTIZATION; AUTOMATION; ECOLOGICAL CONCENTRATION; HYDRAZINE; MONITORING; NITRITES; QUANTITATIVE CHEMICAL ANALYSIS; REDUCTION; WATER POLLUTION; CHEMICAL ANALYSIS; CHEMICAL REACTIONS; NITROGEN COMPOUNDS; OXYGEN COMPOUNDS; POLLUTION; 520200* - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989)
OSTI ID:
5429298
Country of Origin:
United Kingdom
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: WATRA
Submitting Site:
HEDB
Size:
Pages: 205-216
Announcement Date:
Aug 01, 1983

Journal Article:

Citation Formats

Kamphake, L J, Hannah, S A, and Cohen, J M. Automated analysis for nitrate by hydrazine reduction. United Kingdom: N. p., 1967. Web.
Kamphake, L J, Hannah, S A, & Cohen, J M. Automated analysis for nitrate by hydrazine reduction. United Kingdom.
Kamphake, L J, Hannah, S A, and Cohen, J M. 1967. "Automated analysis for nitrate by hydrazine reduction." United Kingdom.
@misc{etde_5429298,
title = {Automated analysis for nitrate by hydrazine reduction}
author = {Kamphake, L J, Hannah, S A, and Cohen, J M}
abstractNote = {An automated procedure for the simultaneous determinations of nitrate and nitrite in water is presented. Nitrite initially present in the sample is determined by a conventional diazotization-coupling reaction. Nitrate in another portion of sample is quantitatively reduced with hydrazine sulfate to nitrite which is then determined by the same diazotization-coupling reaction. Subtracting the nitrite initially present in the sample from that after reduction yields nitrite equivalent to nitrate initially in the sample. The rate of analysis is 20 samples/hr. Applicable range of the described method is 0.05-10 mg/l nitrite or nitrate nitrogen; however, increased sensitivity can be obtained by suitable modifications.}
journal = {Water Res.; (United Kingdom)}
volume = {1}
journal type = {AC}
place = {United Kingdom}
year = {1967}
month = {Jan}
}