Data/hora: 11/06/2024 04:49:53

Biblioteca(s): 	Embrapa Pecuária Sudeste.	
Data corrente: 	09/01/2004	
Data da última atualização: 	28/06/2023	
Autoria: 	ARTIGAS, J.; JIMENEZ, C.; LEMOS, S. G.; NOGUEIRA, A. R. de A.; TORRE NETO, A.; ALONSO, J.	
Afiliação: 	ANA RITA DE ARAUJO NOGUEIRA, CPPSE; ANDRE TORRE NETO, CNPDIA.	
Título: 	Development of a screen-printed thick film nitrate sensor based on a graphite-epoxy composite for agricultural applications.	
Ano de publicação: 	2003	
Fonte/Imprenta: 	Sensors and Actuators part B, v. 88, n. 3, p. 337-344, 2003.	
DOI: 	10.1016/S0925-4005(02)00399-4	
Idioma: 	Inglês	
Conteúdo: 	The present report describes the development of a thick-®lm sensor with intended applications for soil analysis. A probe incorporates three sensors, each at a different depth and featuring a copper plate as the reference electrode. In addition, the probe also contains all necessary instrumentation required for processing the sensor signal and to transmit it via radio. The developed sensors were calibrated in situ using two different soil compositions by adding standard solutions. Results show a quasi-Nernstian response in soil, in response to the addition of fertilisers. Extracts of soil samples analysed by the Kjeldahl method were compared with results from the probe. This comparison con®rms that the sensors are capable or measuring chemical parameters in situ in an automated fashion.	
Palavras-Chave: 	In situ; Nitrate monitoring; Soil probe.	
Thesaurus Nal: 	soil analysis.	
Categoria do assunto: 	W Química e Física	
Registro original: 	Embrapa Pecuária Sudeste (CPPSE)	
Exemplares: 	CPPSE - (14847-1) - UPC - AP - DD - PROCI-2003.00001 - ART - 2003.00001 - DIS