REFERENCES
- Beauchamp , C.J. and Gosselin , A. 2002 . Examination of environmental quality of raw and composting deinking paper sludge . Chemposphere , 46 : 887 – 895 .
- Bermejo-Barrera , P. , Muñiz-Naveiro , O. , Moreda-Piñeiro , A. , and Bermejo-Barrera , A. 2000 . Experimental designs in the optimisation of ultrasonic bath-acid-leaching procedures for the determination of trace elements in human hair samples by atomic absorption spectrometry . Forensic Science International , 107 : 105 – 120 .
- Castle , L. , Baxter , M.J. , and Gilbert , J. 1997 . Migration studies from paper and board food packaging materials. I. Compositional analysis . Food Additives and Contaminants , 14 : 35 – 44 .
- Compañó Beltrán , R. , and Castro , A.R. 2003 . Garantía de Calidad en Los Laboratorios Analíticos . Madrid , Spain : Síntesis .
- Conti , M.E. , Mariani , M.B. , Milana , M.R. , and Gramiccioni , L. 1997 . Heavy metals and optical whitenings as quality parameters of recycled paper for food packaging . Journal of Food Processing and Preservation , 20 : 1 – 11 .
- D'Arrigo , V. 1976 . Indagine sul contenuto in oligoelementi (Cr, Co, Cu, As, Se, Cd, Hg, Pb) e in policlorodifenili in carte preparate don fibre di riciclo e destinate a venire a contatto con le sostanze alimentary . Rassegna Chimica , 28 ( 1 ): 12 – 18 .
- D'Souza , V.A. ; Hand , V.C. ; and Schaefer , R.L. 1998 . Concentrations of metals entering and leaving a recycled paper deinking mill . Progress in Paper Recycling , 7 : 22 – 32 .
- Diario Oficial de las Comunidades Europeas (ES) 5.9.2002 L 237/6. EPA 3051 . 2004 . http://sampleprep.duq.edu/dir/3051method.html .
- Ferré , J. 2005 . El diseño factorial completo . Barcelona , Spain : Grupo de Quimiometría y Cualimetría, Departamento de Química Analítica y Química Orgánica, Universidad Rovira i Virgili .
- Hewitt , A. and Reynolds , C.M. 1990 . Dissolution of metals from soils and sediments with microwave-nitric acid digestion technique . Atomic Spectroscopy , 11 ( 5 ): 187 – 192 .
- Meininghaus , R. and Bahadir , M. 1996 . A new method for the simultaneous determination of heavy metals in wallcoverings . Fresenius Journal of Analytical Chemistry , 354 : 27 – 31 .
- Miller , J.C. and Miller , J.N. 1993 . Estadística Para Química Analítica . Addison-Wesley Iberoamericana : Wilmington, DE, USA .
- Perring , L. , Alonso , M. I. , Andrey , D. , Bourqui , B. , and Zbinden , P. 2001. An evaluation of analytical techniques for determination of lead, cadmium, chromium and mercury in food-packaging materials. Fresenius Journal of Analytical Chemistry , 370: 76–81.
- Praskievicz , R.W. and Subt , S.S. 1976 . Determination of heavy metals contamination in printing papers . Conference Papers-Fallgraphics Arts Conference , 1 : 23 – 32 .
- Simon , P.J. , Glessen , B.C. , and Copeland , T.R. 1977 . Categorization of paper by trace metal content using atomic absorption spectrometric and pattern recognition techniques . Analytical Chemistry , 49 ( 14 ): 2285 – 2288 .
- Spence , L.D. , Baker , A.T. , and Byrne , J.P. 2000 . Characterization of document paper using elemental compositions determined by inductively coupled plasma mass spectrometry . Journal of Analytical Atomic Spectrometry , 15 : 813 – 819 .
- Sipiläinen-Malm , T. , Latva-Kala , K. , Tikkanen , L. , Suihko , M.L. , and Skyttä , E. 1997 . Purity of recycled fibre-based materials . Food Additives and Contaminants , 14 ( 6–7 ): 695 – 670 .