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2013 | 11 | 5 | 790-800
Article title

Voltammetric method for ultra-trace determination of total mercury and toxic metals in vegetables. Comparison with spectroscopy

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A new procedure for the determination of mercury(II), copper(II), lead(II), cadmium(II) and zinc(II) traces in food matrices by square wave anodic stripping voltammetry and standard addition method is proposed. A rapid, inexpensive and multi-analyte analytical method suitable for food safety control is provided. Comestible vegetables were chosen as samples. A two-step, sequential determination was defined, employing two working electrodes: a gold electrode (GE) for mercury(II) and copper(II), and subsequently a hanging mercury drop electrode (HMDE) for copper(II), lead(II), cadmium(II) and zinc(II). No sample pre-treatment was needed. Spinach leaves, tomato leaves and apple leaves were employed as standard reference materials to optimize and defined the analytical procedure. The new method shows good selectivity, sensitivity, detectability and accuracy. A critical comparison with spectroscopic measurements is discussed. Spinach, lettuce and tomato samples sold on the market were analysed as real samples. Lead(II) and cadmium(II) concentration exceeded the relevant legal limits. [...]
Physical description
1 - 5 - 2013
27 - 2 - 2013
  • Department of Chemistry «G. Ciamician», University of Bologna, I-40126, Bologna, Italy
  • Department of Chemistry «G. Ciamician», University of Bologna, I-40126, Bologna, Italy
  • [1] C. Reilly, Metal Contamination of Food - Its Significance for Food Quality and Human Health (Blackwell Science Ltd., Oxford, U.K., 2002)[Crossref]
  • [2] L. Ebdon, L. Pitts, R. Cornelis Eds., Trace Element Speciation for Environment, Food and Health (Royal Society of Chemistry, Cambridge, U.K., 2002)
  • [3] E. Merian, M. Anke, M. Ihnat, M. Stoeppler, Elements and their Compounds in the Environment - Occurrence, Analysis and Biological Relevance (Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim, Germany, 2004)[Crossref]
  • [4] M. Intawongse, J.R. Dean, Food Additives an Contaminants, Part A, Chemistry Analysis Control, Exposure and Risk Assessment 23, 36 (2006)[WoS][Crossref]
  • [5] S. Caroli, The Determination of Chemical Elements in Food: Applications for Atomic and Mass Spectrometry (John Wiley & Sons Inc., Hoboken, New Jersey, USA, 2007)[Crossref]
  • [6] N. Ferré-Huguet, R. Martì-Cid, M. Schuhmacher, J.L. Domingo, Biol. Trace Elem. Res. 123, 66 (2008)[Crossref]
  • [7] D. Melucci, S. Montalbani, C. Locatelli, Cent. Eur. J. Chem. 10, 267 (2012)[Crossref]
  • [8] C. Fidalgo Hijano, M.D. Pettit Dominguez, R. GarcÌa Gimènez, P. Hungria Sànchez, I. Sancho Garcìa, Environ. Monit. Assess. 111, 75 (2005)[Crossref]
  • [9] C. Nali, E. Balducci, L. Frati, L. Paoli, S. Loppi, G. Lorenzini, Environ. Monit. Assess. 149, 143 (2009)[Crossref]
  • [10] CEE Directive 1881/2006/CE
  • [11] A. Husain, Z. Baroon, M. Al-Khalafawi, T. Al-Ati, W. Sawaya, Environ. Int. 21, 803 (1995)[Crossref]
  • [12] B. Demirozu-Erdinc, I. Saldamli, Bull. Environ. Contam. Toxicol. 67, 416 (2001)[Crossref]
  • [13] R. Jedrzejczak, Food Addit. Contam. A 19, 996 (2002)[Crossref]
  • [14] G. Lorenzini, Fres. Environ. Bull. 11, 137 (2002)
  • [15] S. Saggu, V. Gupta, R.C. Sawhney, P.K. Rai, R. Kumar, Toxicol. Int. 13, 111 (2006)
  • [16] S.A. Siddiqui, W. Ali, H.S. Gupta, A. Chattree, Asian J. Microbiol. Biotechnol. Environ. Sci. 10, 411 (2008)
  • [17] J. Qian, L. Zhang, H. Chen, M. Hou, Y. Niu, Z. Xu, H. Liu, Bull. Environ. Contam. Toxicol. 83, 920 (2009)[Crossref]
  • [18] L. De Temmerman, N. Waegeneers, N. Claeys, E. Roekens, Environ. Poll. 157, 1337 (2009)[Crossref]
  • [19] V. Singh, A.N. Garg, Food Chem. 94, 81 (2006)[Crossref]
  • [20] D. Melucci, C. Locatelli, J. Electroanal. Chem. 675, 25 (2012)
  • [21] I. Baranowska, K. Srogi, A. Wlochowicz, K Szczepanik, Pol. J. Environ. Stud. 11, 467 (2002)
  • [22] Viqar-Un-Nisa, R. Viqar-Un-Nisa, R. Ahmed, M. Mohammad, Toxicol. Environ. Chem. 87, 67 (2005)[Crossref]
  • [23] A. Ramadan, H. Mandil, M. Saleh, Anal. Lett. 39, 1411 (2006)[Crossref]
  • [24] H. Xu, L. Zeng, D. Huang, Y. Xian, L. Jin, Food Chem. 109, 834 (2008)[Crossref]
  • [25] C. Locatelli, D. Melucci, Food Chem. 130, 460 (2012)[Crossref]
  • [26] J.P. Byrne, D.C. Grégoire, M.E. Benyounes, C.L. Chakrabarti, Spectrochim. Acta B 52, 1575 (1997)[Crossref]
  • [27] A.A. Almeida, J.L.F.C Lima, Atom. Spectrosc. 22, 324 (2001)
  • [28] R.E. Santelli, M. De Almeida Bezerra, O.D. De Santana, R.J. Cassella, S.L.C. Ferreira, Talanta 68, 1083 (2006)[Crossref]
  • [29] S.L.C. Ferreira, M.G.A. Korn, H.S. Ferreira, E.G.P. da Silva, R.G.O. Araujo, A.S. Souza, S.M. Macedo, D.C. Lima, R.M. de Jesus, F.A.C. Amorim, J.M. Bousque-Sendra, Appl. Spectrosc. Rev. 42, 475 (2007)[Crossref]
  • [30] Y. Bonfil, M. Brand, E. Kirowa-Eisner, Anal. Chim. Acta 424, 65 (2000)[Crossref]
  • [31] Z. Shi, J. Lipkowski, J. Electroanal. Chem. 403, 225 (1996)[Crossref]
  • [32] P. Salaun, C.M. van den Berg, Anal. Chem. 78, 5052 (2006)[Crossref]
  • [33] Z. Shi, S. Wu, J. Lipkowski, J. Electroanal. Chem. 384, 171 (1995)[Crossref]
  • [34] B. Welz, M. Sperling, Atomic Absorption Spectrometry, 3rd edition (Wiley VCH., Weinheim, Germany, 1999)
  • [35] D. Melucci, S. Montalbani, C. Locatelli, Cent. Eur. J. Chem. 10(1), 267 (2012)[Crossref]
  • [36] S. Landi F. Fagioli, C. Locatelli, J. AOAC Int. 75, 1023 (1992)
  • [37] International Union of Pure and Applied Chemistry, Analytical Chemistry Division, Spectrochim. International Union of Pure and Applied Chemistry, Analytical Chemistry Division, Spectrochim. Acta B 33, 241 (1978)
  • [38] C. Locatelli, G. Torsi, Microchem. J. 78, 175 (2004)[Crossref]
  • [39] C. Locatelli, Anal. Methods 2, 1784 (2010)[Crossref]
  • [40] A.J. Bard, L.R. Faulkner, Electrochemical Methods. Fundamental and Applications (Wiley, New York, USA, 1980)
  • [41] H. Matsuda, Bull. Chem. Soc. Jpn. 53, 3439 (1980)[Crossref]
  • [42] Z. Galus, R.A. Chalmers, W.A.J. Bryce, Fundamentals of Electrochemical Analysis (Ellis Horwood, Polish Scientific Publishers PWN, London, U.K., Warsaw, Poland, 1994)
  • [43] J. Wang, Analytical Electrochemistry, 3rd edition (Wiley-VCH Publishers, Hoboken, New Jersey, USA, 2006)[Crossref]
  • [44] M. Hatle, Talanta 34, 1001 (1987)[Crossref]
  • [45] J.C. Miller, J.N. Miller, Statistics and Chemometrics for Analytical Chemistry, 6th edition, (Pearson Education Ltd. Publ., Ashford Colour Press Ltd, Gosport, U.K. 2010)
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