Simple linear fitting for phosphorus and nitrogen analytical curve

Authors

  • Andresa Pescador Santa Catarina State University, UDESC, Brazil. https://orcid.org/0000-0002-4068-6823
  • Patrícia Hüther Zambão Santa Catarina State University, UDESC, Brazil.
  • Eduardo Valdir Poffo Neckel Santa Catarina State University, UDESC, Brazil.

DOI:

https://doi.org/10.5965/2764747102032013001

Keywords:

calibration curve, phosphorus, phosphor, nitrogen

Abstract

By using mathematical modeling to determine analytical curves, equations and coefficients for chemical parameters, it aims to facilitate laboratory work. Nitrogen and phosphorus parameters are found in the most diverse ways in the environment. The method used to determine these parameters is colorimetric, based on the Beer-Lambert Law. The use of standard samples serves as a comparison procedure, where samples that present concentrations in a previously established range are analyzed. Analytical curves are obtained using the linear curve fitting method, whose equation will serve as a reference for future determinations of concentrations. For each curve, a linear correlation coefficient is generated, which indicates how good the fit is. The analytical curves obtained are extremely important, acting as a tool in determining the concentrations of the parameters.

Downloads

Download data is not yet available.

Author Biographies

Andresa Pescador, Santa Catarina State University, UDESC, Brazil.

PhD in Production Engineering from the Santa Catarina Federal University, UFSC, Brazil.

Has a Master’s degree in Production Engineering from the Santa Catarina Federal University, UFSC, Brazil.

Specialist in Mathematics from the Santa Catarina Federal University, UFSC, Brazil.

Graduated in Pedagogical Training for Non-Licensed Graduates at the Avantis University, AVANTIS, Brazil.

Patrícia Hüther Zambão, Santa Catarina State University, UDESC, Brazil.

Has a Master’s degree in Production Engineering from the Santa Catarina Federal University, UFSC, Brazil.

Graduated in Sanitary Engineering at the Santa Catarina State University, UDESC, Brazil

Eduardo Valdir Poffo Neckel, Santa Catarina State University, UDESC, Brazil.

Graduated in Sanitary Engineering at the Santa Catarina State University, UDESC, Brazil.

References

APHA. American Public Health Association. Water Environment Federation, 1992. Standard methods for the examination of water and wastewater analysis. 19ª. ed. Washington, D.C.: American Public H, 1992.

_____. American Public Health Association. Water Environment Federation, 2005. Standard methods for the examination of water and wastewater analysis. 21ª. ed. Washington, D.C.: American Public H, 2005.

BRITO, J. F. D. et al. Tratamento da Água de Purificação do Biodiesel Utilizando Eletrofloculação. Química Nova, Lavras, v. 35, n. 4, 2012.

CETESB. Qualidade das águas superficiais no estado de São Paulo 2010. São Paulo: [recurso eletrônico], 2011.

DÖBEREINER, J. A Importância da Fixação Biológica de Nitrogênio para a. Emprapa – CNPAB, Seropédica, 1995.

GIL, A. C. Métodos e técnicas de pesquisa social. 5ª. ed. São Paulo: Atlas, 2007.

GRANT, C. A. et al. A importância. Revista Associação Brasileira para Pesquisa da Potássio e do Fosfato, Piracicaba, n. 95, Setembro 2001.

MC, M. D. S. Portaria nº 2914 - Procedimentos de controle e de vigilância da qualidade da água para consumo humano e seu padrão de potabilidade. Ministério da Saúde. Brasília. 2011.

MIRANDA, B. Método Quantitativo versus Método Qualitativo. Adrodomus - Bruno Miranda, 2008. Disponivel em: http://adrodomus.blogspot.com.br/2008/06/mtodo-quantitativo-versus-mtodo.html. Acesso em: 1 Outubro 2012.

PEDROSA, D. P. F. Apostila de Ajuste de Curvas. Universidade Federal do Rio Grande do Norte - Centro de Tecnologia Departamento de Engenharia de Computação e Automação: [s.n.], 2005.

PESCADOR, A. Apostila de Cálculo Númerico - Notas de Aula. Ibirama: Udesc - Ceavi, 2012.

Downloads

Published

2013-08-01

How to Cite

Pescador, A., Zambão, P. H., & Neckel, E. V. P. (2013). Simple linear fitting for phosphorus and nitrogen analytical curve. Revista Brasileira De Contabilidade E Gestão, 2(3), 01–09. https://doi.org/10.5965/2764747102032013001

Issue

Vol. 2 No. 3 (2013)

Section

Articles

License

Copyright (c) 2013 Andresa Pescador, Patrícia Hüther Zambão, Eduardo Valdir Poffo Neckel

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Brazilian Journal of Accounting and Management offers free and immediate access to its content, following the principle that providing scientifical knowledge in a free manner promotes a better world democratization of knowledge. Authors maintain copyright of articles and grant to the journal the rights of the first publication, according to the Creative Commons Attribution licensing criteria, which allows the work to be shared with initial publication and authorship recognition. These licenses allow others to distribute, remix, adapt, or create derived work, even if it is for commercial purposes, provided that the credit is given to the original creation.