Popis: |
Because there has been a widespread acceptance of the use of nessler reagent for the determination of ammonia, it was suggested that this reagent be studied for possible use in the determination of nitrates following reduction by the alkaline ferrous sulfatesilver sulfate technique (4). This article presents the results of such a study and compares these results to those obtained after using nessler reagent and two other reduction techniques : one utilizing a zinc-copper couple (5), and the other utilizing a minum foil (1). |