1. AMARO, J.A.A., FERREIRA, S.L.C., 2004. Application of factorial design and Doehlert matrix in the optimisation of instrumental parameters for direct determination of silicon in naphtha using graphite furnace atomic absorption spectrometry. Journal of Analytical Atomic Spectrometr 19, 246-249.

2. ARLEY, C.R.T., FERREIRA, S.L.C., ARRUDA, M.A.Z., 2004. Use of modified rice husks as a natural solid adsorbent of trace metals: characterisation and development of an on-line preconcentration system for cadmium and lead determination by FAAS. Microchemical Journal 77, 163-175.

3. BARREIROS, A.L.B.S., DAVID, J.M., DAVID, J.P., 2004. Antioxidants pheylpropanoid esters of triterpenes from Dioclea lasiophylla. Pharmaceutical Biology 42, 36-38.

4. BEZERRA, M.A., CONCEICAO, A.L.B., FERREIRA, S.L.C., 2004. Doehlert matrix for optimisation of procedure for determination of nickel in saline oil-refinery effluents by use of flame atomic absorption spectrometry after preconcentration by cloud-point extraction. Analytical and Bioanalytical Chemistry 378, 798-803.

5. CARVALHO, L.S., COSTA, A.C.S., FERREIRA, S.L.C., TEIXEIRA, L.S.G., 2004. Spectrophotometric determination of chromium in Steel with 4-(2-Thiazolylazo)-Resorcinol (TAR) using microwave radiation. Journal of the Brazilian Chemical Society 15, 153-157.

6. CASTRO, J.T., KORN, M., 2004. Deleterious effect of ammonium extraction from soil assisted by ultrasound. Microchemical Journal 78, 41-45.

7. CERUTTI, S., GASQUEZ, J.A., FERREIRA, S.L.C., ORSINA, R.A., MARTINEZ, L.D., 2004. Factorial design for multivariate optimization of an on-line preconcentration system for platinum determination by ultrasonic nebulization coupled to inductively coupled plasma optical emission spectrometry. Talanta 63, 1077-1082.

8. DAVID, J.P., DAVID, J.M., DOS SANTOS, I.D., 2004. A new sesquiterpene from fruits of Allophyllus laevigatus. Fitoterapia 75, 795-798.

9. DAVID, J.P., MEIRA, M., DAVID, J.M., GUEDES, M.L.S., 2004. Triterpenos e ferulatos de alquila de maprounea guianensis. Química Nova 27, 62-65.

10. DAVID, J.P., NASCIMENTO, J.A.P., DAVID, J.M., 2004. Produtos Fitoterápicos: uma perspectiva de negócio para a indústria, um campo pouco explorado pelos farmacêuticos. Infarma 16, 71-76.

11. DE ANDRADE, J.B. , KORN, M.G., CADORE, S., 2004. Research on analytical chemistry in Brazil: an overview. Microchemical Journal 77, 101-106.

12. DE ANDRADE, J.B. DA SILVA, L.A., 2004. Isomorphic series of double sulphites of the Cu2SO3.MSO3.2H2O (M = Cu, Fe, Mn, and Cd) type – a review. Journal Of The Brazilian Chemical Society 15, 170-174.

13. DE ANDRADE, J.B., PEREIRA, P.A.P, PINHEIRO, H.C., ANDRADE, M.V., 2004. Spectrofluorimetric determination of formaldehyde in air after collection onto sílica cartridges coated with fluoral P. Microchemical Journal 77, 15-20.

14. DE ANDRADE, J.B., PEREIRA, P.A.P., SANTOS, L.M.B., SOUZA, E.T., 2004. Alcohol and gasohol fuels: a comparative chaber study of photochemical ozone formation. Journal Of The Brazilian Chemical Society 15, 646-651.

15. DE ANDRADE, J.B., PINTO, A.C., VIEIRA, P.C., PARDINI, V., 2004. A pós-graduação e a graduação. Química Nova Especial, 221-222.

16. DE ANDRADE, J.B., PINTO, A.C., VIEIRA, P.C., PARDINI, V., 2004. A contribuição da química e do PADCT ao desenvolvimento científico e tecnológico do Brasil. Química Nova Especial, 327-328.

17. DE ANDRADE, J.B., TEIXEIRA, L.S.G., COSTA, A.C.S., LEÃO, E.S., DANTAS, A., PINHEIRO, H.C., 2004. Determination of formaldehyde in brazilian alcohol fuels by flow-injection solid phase spectrophotometry. Talanta 64, 711-715.

18. DEANDRADE, J.B., DA SILVA, L.A., MARTINS, C.R., 2004. Porque todos os nitratos são solúveis? Química Nova 27, 1016-1020.

19. DE ANDRADE, J.B., PEREIRA, P.A.P., DE OLIVEIRA, R.F.S., 2004. Analysis of stirene content in polystirene cups by purge and trap followed by HRGC-FID. American Laboratory July, 16-18.

20. DE ANDRADE, J.B., PINTO, A.C., VIEIRA, P.C., ZUCCO, C., CADORE, S., 2004. A formação do químico. Química Nova 27, 358-362.

21. FERREIRA, A.C., COSTA, A.C.S., KORN, M.G.A., 2004. Preliminary evaluation of the cadmiun concentration in sea water of Salvador City, Brazil. Microchemical Journal 78, 77-83.

22. FERREIRA, A.C., KORN, M.G.A., FERREIRA, S.L.C., 2004. Multivariate optimization in preconcentration procedure for manganese determination in seawater samples by FAAS. Mikrochimica Acta 146, 271-278.

23. FERREIRA, S.L.C., SANTOS, W.N.L., QUINTELLA, C.M. , BARROS NETO, B., SENDRA, J.M.B., 2004. Doehlert matrix: a chemometric tool for analytical chemistry - Review. Talanta 63, 1061-1067.

24. FERREIRA, S.L.C., ANDRADE, H.M.C., SANTOS, H.C., 2004. Characterization and determination of the thermodynamic and kinetic properties of the adsorption of the molybdenum (VI) calmagite complex onto active carbon. Journal of Colloidal and Interface Sci. 270, 276-280.

25. FERREIRA, S.L.C., CERUTTI, S., GASQUEZ, J.A., ORSINA, R.A., MARTINEZ, L.D., 2004. Optimization of the preconcentration system of cadmium with 1(2-thiazolylazo)-p-cresol using a knotted reactor and flame atomic absorption spectrometric detection. Journal of Hazardous Materials 112, 279-283.

26. FERREIRA, S.L.C., SANTOS, H.C., COSTA, A.C.S., GUARDIA, M.D.L, 2004. Procedures for separation and pre-concentracion for molybdenum determination using atomic spectrometry – a review. Applied Spectroscop 39, 457-474.

27. KORN, M., BORGES, S.S., MAIA, P.R.M., LIMA, J.L.F.C., LAPA, R.A.S., 2004. Reagent generation for chemical analysis assisted by ultrasonic irradiation. Ultrasonics 42, 585-590.

28. KORN, M.G.A., SANTOS JÚNIOR, A.F., JAEGER, H.V., SILVA, N.M.S., COSTA, A.C.S., 2004. Copper, zinc and manganese determination in saline matrices employng FAAS after separation and preconcentration on amberlite XAD-7 and dowex 1X-8 loaded with alizarin red S. Journal of the Brazilian Chemical Society 15, 212-218.

29. LEMOS, V.A., NUNES, L.S., SANTOS, J.S., BALIZA, P.X., YAMAKI, R.T., DE JESUS, A.A., 2004. On-line solid phase extraction system for cadmium preconcentration and determination by Flame Atomic Absorption Spectroscopy. Canadian Journal of Analytical Sciences and Spectroscopy 49, 24-30.

30. LEMOS, V.A., SANTOS, J.S., BALIZA, P.X., 2004. Synthesis of alfa-nitroso-beta-naphthol modified Amberlite XAD-2 resin and its application in on-line solid phase extraction system for cobalt preconcentration. Separation Science and Technology 39, 3317-3330.

31. OLIVEIRA, F.S., TEIXEIRA,L.S.G., DE ARAÚJO, M.C.U., KORN, M., 2004. Screening analysis to detect adulterations in brazilian gasoline samples using distillation curves. Fuel 83, 917-923.

32. PORTELA, J.G., COSTA, A.C.S., TEXEIRA, L.S.G., 2004. Determination of vitamin B6 in pharmaceutical formulations by flow injection-solid phase spetrophotometry. Journal of Pharmaceutical and Biomedical Analysis 34, 543-549.

33. QUINTELLA, C.M., WATANABE, Y.N., LIMA, A.M.V., KORN, M., PEPE, I., EMBIRUÇU, M., MUSSE, A.P.S., 2004. Evaluation of transversal and longitudinal dispersion in a flow injection system by exploiting laser induced fluorescence: influence of flow-cell positioning. Analytica Chimica Acta 523, 293-300.

34. SANTOS, W.N.L., COSTA, J.L.O., SANTOS, C.M.C., ANDRADE, H.M.C., FERREIRA, S.L.C., 2004. Multivariate optimization and validation studies in on-line pre-concentration system for lead determination in drinking water and saline waste from oil refinery. Microchemical Journal 77, 123-129.

35. TARLEY, C.R.T., SANTOS, W.N.L., SANTOS, C.M.C., FERREIRA, S.L.C., ARRUDA, M.A.Z., 2004. Factorial design and doehlert matrix in optimization of flow system for preconcentration of copper on polyurethane foam loaded with 4-(2-pyridylazo)-resorcinol. Analytical Letters 37, 1437-1455.