Artículos de revistas
Non-destructive Determination Of Total Nitrogen In Plants By Diffuse Reflectance Near Infrared Spectroscopy [determinação Não Destrutiva Do Nitrogênio Total Em Plantas Por Espectroscopia De Reflectância Difusa No Infravermelho Próximo]
Registro en:
Quimica Nova. , v. 31, n. 3, p. 700 - 703, 2008.
1004042
2-s2.0-45849083833
Autor
Lima K.M.G.
Trevisan M.G.
Poppi R.J.
De Andrade J.C.
Institución
Resumen
Diffuse reflectance near-infrared (DR-NIR) spectroscopy associated with partial least squares (PLS) multivariate calibration is proposed for a direct, non-destructive, determination of total nitrogen in wheat leaves. The procedure was developed for an Analytical Instrumental Analysis course, carried out at the Institute of Chemistry of the State University of Campinas. The DR-NIR results are in good agreement with those obtained by the Kjeldhal standard procedure, with a relative error of less than ± 3% and the method may be used for teaching purposes as well as for routine analysis. 31 3 700 703 Wang, L., Lee, F.S.C., Wang, X.R., (2006) Food Chem, 95, p. 529 Rui, Y.K., Luo, Y.B., Huang, K.L., Zhang, L.D., (2005) Spectrosc. Spectral Anal, 25, p. 1581 McClure, W.F., (2003) J. Near Infrared Spectrosc, 11, p. 487 Willians, P., Norris, K., (1990) Near Infrared Technology in the Agricultural and Food Industries, , AACC Press: Minnesota Hooton, D.E., (1978) Cereal Food World, 23, p. 176 Miyamae, Y., Yamakawa, Y., Ozaki, Y., (2007) Appl. Spectrosc, 67, p. 212 Jones, P.D., Schimleck, L.R., Peter, G.F., (2006) Wood Sci. Technol, 40, p. 709 Masserschmidt, I., Cuelbas, C.J., Poppi, R.J., De Andrade, J.C., De Abreu, M.F., Davanzo, C.U., (1999) J. Chemom, 13, p. 265 Mello, C., Poppi, R.J., De Andrade, J.C., Canterella, H., (1999) Analyst, 124, p. 1669 Geladi, P.E., (1996) Near Infrared Spectroscopy: The Future Waves, p. 29. , Davies, A. M, Willians, P, eds, NIR Publications: Chichester, cap Uddin, M., Okazaki, E., Ahmad, M.U., Fukuda, Y., Tanaka, M., (2006) Food Control, 17, p. 660 Galvão, R.K.H., Araújo, M.C.U., Martins, M.D., José, G.E., Pontes, M.J.C., Silva, E.C., Saldanha, T.C.B., (2006) Chemom. Intell. Lab. Syst, 81, p. 60 Arana, I., Jaren, C., Arazuri, S., (2005) J. Near Infrared Spectrosc, 13, p. 349 Yu, H.Y., Ying, Y.B., Fu, X.P., Lu, H.S., (2006) J. Near Infrared Spectrosc, 14, p. 37 Fidencio, P.H., Poppi, R.J., De Andrade, J.C., Cantarella, H., (2002) Commun. Soil Sci. Plant Anal, 33, p. 1607 Fidencio, P.H., Poppi, R.J., De Andrade, J.C., (2002) Anal. Chim. Acta, 453, p. 125 Wiles, P.G., Gray, I.K., Kissling, R.C., (1998) J. AOAC Int, 81, p. 620 (1990) Protocolo de Análise: Determinação de nitrogênio em material vegetal por destilação, SFSNP, , IAC;, Campinas Delwiche, S.R., Reeves, J.B., (2004) J. Near Infrared Spectrosc, 12, p. 177 Turak, F., Ozgur, M.U., Ercag, A., Bozdogan, A., (2006) Rev. Anal. Chem, 25, p. 295 Faber, N.M., (1999) Appl. Spectrosc, 53, p. 1011