Abstract
A method for bromine, chlorine, and iodine determination in soybean and related products was developed by inductively coupled plasma mass spectrometry (ICP-MS) after digestion by microwave-induced combustion (MIC). Samples were pressed as pellets and combusted using pressurized oxygen (20 bar) and ammonium nitrate solution (50 μL of 6 mol L−1) as the igniter. Analytes were absorbed in alkaline solution (100 mmol L−1 NH4OH), and a reflux step of 5 min, microwave power of 1,400 W, was applied after combustion in order to improve analyte recoveries. For Cl determination by ICP-MS, a dynamic reaction cell was used with ammonia as the reaction gas. The accuracy was evaluated using certified reference materials (CRMs) and spiked samples. Using MIC, the agreement with CRM values and spike recoveries was higher than 95 % for all analytes for certified reference materials of a similar composition (National Institute of Standards and Technology (NIST), corn bran and NIST, whole milk). Limits of detection were 0.03, 1.2, and 0.002 μg g−1 for Br, Cl, and I, respectively. The residual carbon content in the digests obtained after MIC procedure was lower than 0.5 %. Blanks were always negligible and no memory effects were observed. Digestion by MIC allowed processing up to eight samples by each run in 25 min with high efficiency of digestion providing a suitable medium for further bromine, chlorine, and iodine determination by ICP-MS.
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Anke M, Groppel B, Müller M, Scholz E, Krämer K (1995) Fresenius J Anal Chem 352:97
Antes FG, Duarte FA, Paniz JNG, Santos MFP, Guimarães RCL, Flores EMM, Dressler VL (2008) At Spectr 29:157
Antes FG, Duarte FA, Mesko MF, Nunes MA, Pereira VA, Muller EI, Dressler VL, Flores EMM (2010) Talanta 83:364
Biester H, Selimović D, Hemmerich S, Petri M (2006) Biogeosciences 3:53
Cox RJ, Pickford CJ (1992) J Anal Atm Spectrom 7:635
Duarte FA, Pereira JSF, Barin JS, Mesko MF, Dressler VL, Flores EMM, Knapp G (2009) J Anal Atom Spectrom 24(224)
Edwards SL (2008) Intensive Care Nurs 24:28
Empresa Brasileira de Pesquisa Agropecuária (EMBRAPA) http://www.cnpso.embrapa.br. Accessed 24 Aug 2011
Fecher PA, Nagengast A (1994) J Anal At Spectrom 9:1021
Fecher PA, Goldmannand I, Nagengast A (1998) J Anal Atm Spectrom 13:977
Flores EMM, Barin JS, Mesko MF, Knapp G (2007) Spectrochim Acta B 62:1051
Flores EMM, Mesko MF, Moraes DP, Pereira JSF, Mello PA, Barin JS, Knapp G (2008) Anal Chem 80:1865
Gélinas Y, Krushevska A, Barnes RM (1998) Anal Chem 70:1021
IUPAC (1997) In: McNaught AD, Wilkinson A (eds) Compendium of chemical terminology, 2nd edn. Blackwell, Oxford, http://www.iupac.org/. Accessed 22 Mar 2012
Kim B, McBride MB, Richards BK, Steenhuis TS (2007) Plant Soil 299:227
Kinniburgh DG, Jackson ML, Syers JK (1976) Soil Sci Soc Am J 40:796
Knapp G, Maichin B, Fecher P, Hasse S (1998) Fresenius J Anal Chem 362:508
Mello PA, Giesbrecht CK, Alencar MS, Moreira EM, Paniz JNG, Dressler VL, Flores EMM (2008) Anal Lett 41:1623
Mello PA, Pereira JSF, Moraes DP, Dressler VL, Flores EMM, Knapp G (2009) J Anal At Spectrom 24:911
Mesko MF, Mello PA, Bizzi CA, Dressler VL, Knapp G, Flores EMM (2010) Anal Bioanal Chem 398:1125
Moraes DP, Pereira JSF, Diehl LO, Mesko MF, Dressler VL, Paniz JNG, Knapp G, Flores EMM (2010) Anal Bioanal Chem 397:563
Muller ALH, Bizzi CA, Pereira JSF, Mesko MF, Moraes DP, Flores EMM, Muller EI (2011) J Braz Chem Soc 22:1649
Nóbrega JA, Santos MC, Sousa RA, Cadore S, Barnes RM, Tetro M (2005) Spectrochim Acta B 61:465
Oliveira AA, Trevisan LC, Nobrega JA (2010) Appl Spectrosc Rev 45:447
Pereira JSF, Diehl LO, Duarte FA, Santos MFP, Guimarães RCL, Dressler VL, Flores EMM (2008) J Chromatogr A 1213:249
Pereira JSF, Mello PA, Moraes DP, Duarte FA, Dressler VL, Knapp G, Flores EMM (2009a) Spectrochim Acta B 64:554
Pereira JSF, Mello PA, Duarte FA, Santos MFP, Guimarães RCL, Knapp G, Dressler VL, Flores EMM (2009b) Energy Fuel 23:6015
Pereira JSF, Antes FG, Diehl LO, Knorr CL, Mortari SR, Dressler VL, Flores EMM (2010a) J Anal At Spectrom 25:1268
Pereira JSF, Moraes DP, Antes FG, Diehl LO, Santos MFP, Guimarães RCL, Fonseca TCO, Dressler VL, Flores EMM (2010b) Microchem J 96:4
Pereira JSF, Antes FG, Diehl LO, De Knorr C, Mortari SR, Dressler VL, Flores EMM (2010c) J Anal At Spectrom 25:1268
Pereira JSF, Moreira CM, Albers CN, Jacobsen OS, Flores EMM (2011) Chemosphere 83:281
Schnetger B, Muramatsu Y (1996) Analyst 12:1627
Shiraishi K, Muramatsu Y, Los IP, Korzun VN, Tsigankov NY, Zamostyan PV (1999) J Radioanal Nucl Chem 242:199
Sturgeon RE, Grinberg P (2009) Spectrochim Acta B 64:235
Sussulini A, Garcia JS, Mesko MF, Moraes DP, Flores EMM, Pérez CA, Arruda MAZ (2007) Microchim Acta 158:173
Vtorushina EA, Saprykinand AI, Knapp G (2009) J Anal Chem 64:129
World Health Organization-WHO, Geneva http://www.who.int. Accessed 05 Aug 2011
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The authors are grateful to FAPESB, CNPq, CAPES, and INCT-Bioanalítica/CNPq for supporting this study.
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Barbosa, J.T.P., Santos, C.M.M., dos Santos Bispo, L. et al. Bromine, Chlorine, and Iodine Determination in Soybean and its Products by ICP-MS After Digestion Using Microwave-Induced Combustion. Food Anal. Methods 6, 1065–1070 (2013). https://doi.org/10.1007/s12161-012-9511-6
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DOI: https://doi.org/10.1007/s12161-012-9511-6