The present work
describes the validation of an analytical method for chromatographic
determination of chlorimuron ethyl herbicide (compound of sulphonylurea group)
in sediments, in according with Brazilian legislation, following the guidance
and normative documents of INMETRO (DOQ-CGCRE-008) and ANVISA (Resolution RE no
899 - 2003). The results show that the chromatographic method demonstrated to
be selective, accurate, precision and linear over the concentration range of
5.0-1000.0 ug L-1. Besides, limits of quantitation and determination
were satisfactory, 29.48 and 8.84 ug L-1, both determined by
calibration curve. The method proposed also showed good results for assays of
recovery, with confidence intervals between 80 and 100%, approximately, with
accuracy and precision.
References
[1]
Baird,
C. (2008) Environmental Chemistry, Freeman: New York.
[2]
US-EPA – United States
Environmental Protection Agency (2005); Citizen's Guide
to Pest Control and Pesticide
Safety. EPA: Washington.
[3]
Oliveira Junior, R. S., Constantin, J. and Inoue,
M. H. (2011) Biologia e manejo de plantas daninhas, Omnipax: Curitiba.
ANVISA
- Agência Nacional de Vigilancia Sanitária (1987); Monografias técnicas do ministério da saúde sobre substancias com acao
tóxica sobre animais ou plantas, Portaria 9 10/85. ANVISA: Brasília.
[6]
Zanella, R., Primel, E.
G., Goncalves, F. F., Kurz, M. H. S. and Mistura, C. M. (2003) Development and
validation of a high-performance liquid chromatographic procedure for the
determination of herbicide residues in surface and agriculture waters. Journal of Separation Science, 26, 935-938. http://dx.doi.org/10.1002/jssc.200301309
[7]
Lancas, F. M.
(2009) Cromatografia liquida moderna - HPLC/CLAE, RiMa: Sao Carlos.
[8]
Leite, F. (2008) Validacao em análise
química, átomo: Campinas.
[9]
Lancas, F.
M. (2004) Validacao
de métodos cromatográficos de análise,
RiMa: Sao Carlos.
[10]
INMETRO – Instituto Nacional de Metrologia,
Normalizacao e Qualidade Industrial (2011); Orientacoes sobre Validacao de Métodos de Ensaios Químicos, DOQ-CGCRE-008. INMETRO: Brasília.
[11]
ANVISA – Agência
Nacional de Vigilancia Sanitária (2003); Guia
para validacao de métodos analíticos e bioanalíticos, Resolutio RE no 899. ANVISA:
Brasília.
[12]
ISO – International Standard Organization (1999) General requirements for the competence
of testing and calibration laboratories, ISO/IEC
17025. ISO: Genebra.
[13]
Johnson, R. A.
and Bhattacharyya, G. K. (2001) Statistics principle and methods,
John Wiley: New York.
[14]
ANA – Agencial
Nacional de águas, CETESB – Companhia Ambiental do Estado de Sao Paulo (2011) Guia Nacional de Coleta
e Preservacao de Amostras: água, Sedimentos, Comunidades Aquáticas e Efluentes
Líquidos, ANA: Brasília.
[15]
Nogueira, A.
R. A. and Souza, G. B. (2005) Manual de laboratórios: solo, água,
nutricao vegetal, nutricao animal e alimentos, EMBRAPA Pecuária Sudeste: Sao
Carlos.
[16]
Hayes, M. H. B., MacCarthy, P.,
Malcolm, R. L. and Swift, R. S. (1989) Humic
substances II: in search of structure, John Wiley: New York.