Device and method for estimating three nitrogen-including ionic

Details Device and method for estimating three nitrogen-including ionic Device and method for estimating three nitrogen-including ionic

1995-06-02

1997-09-16

Soderquist, Arlen

Chemistry: analytical and immunological testing

Nitrogen containing

Nitrite or nitrate

436106, 436113, 436108, 436111, 436 52, 436 53, 436114, 436172, 422 52, 422 81, 422 82, G01N 3300, G01N 3318, G01N 3508, G01N 2176

Patent

active

056680147

ABSTRACT:
To estimate nitric acid ions and nitrous acid ions in a sample solution, a method is proposed which comprises the steps of (a) feeding both the sample solution and a reducing agent to an acidic solution which is flowing in a thin pipe; (b) positively mixing the sample solution and the reducing agent and thus reacting the same in a given portion of the pipe; (c) leading the reacted solution to a gas/liquid separator thereby to separate a gaseous phase from the reacted solution; and (d) estimating the nitric acid ions and nitrous acid ions in the gaseous phase.

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