Now showing items 1-10 of 713
Development and application of an electronic tongue for detection and monitoring of nitrate, nitrite and ammonium levels in waters
This work presents the first study and development of an electronic tongue analysis system for the monitoring of nitrogen stable species: nitrate, nitrite and ammonium in water. The electronic tongue was composed of an ...
Chemical sensor based on tetradecil ammonium nitrate
The construction and evaluation of an all-solid-state type electrode selective to nitrate based on poly(vinyl chloride) (PVC) as polymeric membrane, diethyl phthalate as plasticizer and tetradecilammonium nitrate (TDAN) ...
STUDIES ON GRAFT COPOLYMERIZATION OF 2-HYDROXYETHYLMETHACRYLATE ONTO KAPPA-CARRAGEENAN INITIATED BY CERIC AMMONIUM NITRATE
(Sociedad Chilena de Química, 2010)
Effect of different sources and concentrations of mineral nitrogen on growth and nodulation of two angico species
(Inst Tecnologia ParanaCuritiba-paranaBrasil, 1996)
Construction of a polymeric liquid-membrane ion-selective electrode (ISE) and its application for determination of nitrate in tomatoes
A potentiometric all-solid-state type ion-selective electrode (ISE) for NO3 - was constructed and characterized. It is based on a mixture of tetra-decyl-ammonium nitrate (TDAN) as ionophore, di-butyl phthalate (DBP) as ...
Nitrate Reductase, Micronutrients and Upland Rice Development as Influenced by Soil pH and Nitrogen Sources
The average yield of upland rice under no-tillage system (NTS), a sustainable soil management, is lower than in conventional tillage (one plowing and two disking). One of the reasons given for this drop in crop grain yield ...
Soil nitrate level variation under intensive nitrogen fertilized coastcross pasture.
(In: INTERNATIONAL GRASSLAND CONGRESS, 19., 2001, São Pedro, SP. Proceedings... Piracicaba: FEALQ, 2001. p. 195-196, 2011)