E-mail: john.murimboh@acadiau.ca

Refereed Contributions

1.    EEV Chapman, G Dave, JD Murimboh. Ecotoxicological risk assessment of undisturbed metal contaminated soil at two remote lighthouse sites, Ecotoxicol Environ Saf, 2010, 73, 961–969. doi:10.1016/j.ecoenv.2010.02.014 (NSERC)

2.    NJ O'Driscoll, T Messier, M Robertson and JD Murimboh, Suspension of multi-walled carbon nanotubes (CNTs) in freshwaters: Examining the effect of CNT size. Water Air Soil Pollut. 2010, 208, 235–241. doi:10.1007/s11270-009-0162-1 (NSERC)

3.    *I Gaabass, JD Murimboh and NM Hassan, A study of diffusive gradients in thin films for the chemical speciation of Zn(II), Cd(II), Pb(II), and Cu(II): The role of kinetics. Water Air Soil Pollut., 2009, 202, 131–140. doi:10.1007/s11270-008-9963-x (NSERC)

4.    Weijia Li, R Skinner, K Megna, Jing Chen, S Perera, J Murimboh, E Waller, L Erhardt, RJ Cornett, In vitro dissolution study of uranium dioxide and uranium ore with different particle sizes in simulated lung fluid, J. Radioanal. Nucl. Chem., 2009, 279, 209–218. doi:10.1007/s10967-007-7306-4 (CRTI)

5.    Jiujiang Zhao, II Fasfous, JD Murimboh, T Yapici, P Chakraborty, S Boca and CL Chakrabarti, Kinetic study of uranium speciation in model solutions and in natural waters using Competitive Ligand Exchange Method. Talanta, 2009, 77, 1015–1020. doi:10.1016/j.talanta.2008.07.057 (Adjunct)

6.    *N Hassan, JD Murimboh and CL Chakrabarti, Kinetic speciation of Ni(II) in model solutions and freshwaters: Competition of Al(III) and Fe(III). Water Air Soil Pollut., 2008, 193, 131–146. doi:10.1007/s11270-008-9677-0 (Adjunct)

7.    Y Gopalapillai, I Fasfous, J Murimboh, T Yapici, P Chakraborty, C Chakrabarti, Determination of free nickel ion concentrations using the ion exchange technique: Application to aqueous mining and municipal effluents. Aquatic Geochemistry, 2008, 14, 99-116. doi:10.1007/s10498-008-9027-2. (Adjunct)

8.    T Yapici, II Fasfous, JD Murimboh and CL Chakrabarti, Investigation of DGT as a metal speciation technique for municipal wastes and mine aqueous effluents. Anal. Chim. Acta, 2008, 622, 70–76. doi:10.1007/s11270-008-9677-0 (Adjunct)

9.    P Chakraborty, II Fasfous, J Murimboh and CL Chakrabarti, Simultaneous determination of speciation parameters of Cu, Pb, Cd and Zn in model solutions of Suwannee River fulvic acid by pseudopolarography. Anal. Bioanal. Chem., 2007, 388, 463–474. doi:10.1007/s00216-007-1185-3 (Adjunct)

10. PE Rasmussen, R Dugandzic, N Hassan, J Murimboh and DC Grégoire. Challenges in Quantifying Airborne Metal Concentrations in Residential Environments. Can. J. Anal. Sci. Spectrosc., 2006, 51, 1–8. (start-up)

11. P Chakraborty, Y Gopalapillai, J Murimboh, II Fasfous and CL Chakrabarti. Kinetic speciation of nickel in mining and municipal effluents. Anal. Bioanal. Chem., 2006, 386, 1803–1813. doi:10.1007/s00216-006-0759-9 (Adjunct)

12. *II Fasfous, CL Chakrabarti, J Murimboh and T Yapici. Complexation of lead in model solutions of humic acid: Heterogeneity and effects of competition with copper, nickel, and zinc. Environ. Chem. 2006, 3, 276–285. doi:10.1071/EN06022 (PDF)

13. *NM Hassan, JD Murimboh, ALR Sekaly, R Mandal, CL Chakrabarti and DC Grégoire. Cascade ultrafiltration and competing ligand exchange for kinetic speciation of aluminium, iron, and nickel in fresh water. Anal. Bioanal. Chem., 2006, 384, 1558–1566. doi:10.1007/s00216-006-0361-1 (PDF)

14. *CA Murimboh, JF Deng, J Murimboh, JW Guthrie, CL Chakrabarti and DRS Lean, An electrochemical study of the interactions between trace metals and humic substances in freshwaters by Anodic Stripping Voltammetry with a Thin Mercury Film Rotating Disk Electrode. Electroanalysis, 2005, 17, 1977–1984. doi:10.1002/elan.200403329 (PDF)

15. JW Guthrie, NM Hassan, MSA Salam, II Fasfous, CA Murimboh, J Murimboh, CL Chakrabarti and DC Grégoire. Complexation of Ni, Cu, Zn, and Cd by DOC in some metal-impacted freshwater lakes: a comparison of approaches using electrochemical determination of free-metal-ion and labile complexes and a computer speciation model, WHAM V and VI. Anal. Chim. Acta, 2005, 528, 205–218. doi:10.1016/j.aca.2004.10.003 (PDF)

16. *II Fasfous, T Yapici, J Murimboh, NM Hassan, CL Chakrabarti, MH Back, DRS Lean and DC Grégoire. Kinetics of trace metal competition in the freshwater environment: Some characteristic features. Environ. Sci. Technol., 2004, 38, 4979–4986. doi:10.1021/es035427v (PDF)

17. *ALR Sekaly, J Murimboh, ME Ben Younes, NM Hassan, R Mandal, CL Chakrabarti, MH Back and DC Grégoire. Kinetic speciation of Co(II), Ni(II), Cu(II) and Zn(II) in model solutions and freshwaters: Lability and the d-electron configuration. Environ. Sci. Technol., 2003, 37, 68–74. doi:10.1021/es025805g (PDF)

18. JW Guthrie, R Mandal, MSA Salam, NM Hassan, J Murimboh, CL Chakrabarti, MH Back and DC Grégoire. Kinetic studies of nickel speciation in model solutions of a well-characterized humic acid using the competing ligand exchange method. Anal. Chim. Acta, 2003, 480, 157–169. doi:10.1016/S0003-2670(02)01590-8(PDF)

19. *R Mandal, NM Hassan, J Murimboh, CL Chakrabarti, MH Back, U Rahayu, DRS Lean and DC Grégoire. Chemical speciation and toxicity of nickel species in freshwaters waters from the Sudbury (Canada) area. Environ. Sci. Technol., 2002, 36, 1477–1484. doi:10.1021/es015622e (PDF)

20. MT Lam, J Murimboh, NM Hassan and CL Chakrabarti, Kinetic speciation of lead and cadmium in freshwaters using Square Wave Anodic Stripping Voltammetry with a Thin Mercury Film Rotating Disk Electrode. Electroanalysis, 2001, 13, 94–99. doi:10.1002/1521-4109(200102)13:2<94::AID-ELAN94>3.0.CO;2-Q (PhD)

21. *V Celo, J Murimboh, MSA Salam and CL Chakrabarti. A kinetic study of nickel complexation in model systems studied by Adsorptive Cathodic Stripping Voltammetry. Environ. Sci. Technol., 2001, 35, 1084–1089. doi:10.1021/es001203q (PhD)

22. *J Murimboh, MT Lam, NM Hassan and CL Chakrabarti. A study of Nafion-coated and uncoated thin mercury film-rotating disk electrodes for cadmium and lead speciation in model solutions of fulvic acid. Anal. Chim. Acta, 2000, 423, 115–126. doi:10.1016/S0003-2670(00)01075-8 (PhD)

23. R Mandal, MSA. Salam, J Murimboh, NM Hassan, CL Chakrabarti and MH Back, Competition of Ca(II) and Mg(II) with Ni(II) for binding by a well-characterized fulvic acid in model solutions. Environ. Sci. Technol., 2000, 34, 2201–2208. doi:10.1021/es991074h (PhD)

24. *MT Lam, J Murimboh, NM Hassan and CL Chakrabarti. Competitive Ligand Exchange / Adsorptive Cathodic Stripping Voltammetry (CLE/AdCSV) for kinetic studies of nickel speciation in aqueous environmental samples containing heterogeneous, macromolecular, organic complexants. Anal. Chim. Acta, 1999, 402, 195–209. doi:10.1016/S0003-2670(99)00526-7 (PhD)

25. ALR Sekaly, R Mandal, NM Hassan, J Murimboh, CL Chakrabarti, MH Back, DC Grégoire and WH Schroeder. Effect of metal/fulvic acid mole ratios on the binding of Ni(II), Pb(II), Cu(II), Cd(II), and Al(III) by two well-characterized fulvic acids in aqueous model solutions. Anal. Chim. Acta, 1999, 402, 211–221. doi:10.1016/S0003-2670(99)00534-6 (PhD)

26. R Mandal, ALR Sekaly, NM Hassan, J Murimboh, CL Chakrabarti, MH Back, DC Grégoire and WH Schroeder. Effect of the competition of copper and cobalt on the lability of nickel(II)-organic ligand complexes. Part I. In model solutions containing Ni(II) and a well-characterized fulvic acid. Anal. Chim. Acta, 1999, 395, 309–322. doi:10.1016/S0003-2670(99)00350-5 (PhD)

27. R Mandal, ALR Sekaly, NM Hassan, J Murimboh, CL Chakrabarti, MH Back, DC Grégoire and WH Schroeder. Effect of the competition of copper and cobalt on the lability of nickel(II)-organic ligand complexes, Part II: in freshwaters (Rideau River surface waters). Anal. Chim. Acta, 1999, 395, 323–334. doi:10.1016/S0003-2670(99)00351-7 (PhD)

Non-Refereed Contributions

28. JD Murimboh. Time to revisit NSERC grant rules. CAUT Bulletin. 2011, 58(3). (unfunded)

29. J Chipman, J Murimboh, CR Stanley. An investigation of partial extractions designed to solubilize Pb and Zn from soils using a complexation desorption mechanism. In: Proceedings of the 24th International Applied Geochemistry Symposium, Fredericton, New Brunswick, June 1ST–4TH, 2009, Vol. 1, DR Lentz, KG Thorne, K Beal (Eds). 2009. pp. 23–26. ISBN 978-1-55131-136-4. (NSERC)

30. N O'Driscoll, T Messier, M Robertson and J Murimboh. Suspension of non-functionalized multi-walled carbon nanotubes (CNTs) in freshwaters: Examining the effects of CNT diameter and dissolved organic matter. In: Proceedings of the 34th Annual Aquatic Toxicity Workshop: Sep 30 – Oct 3, 2007, Halifax, Nova Scotia. Can. Tech. Rep. Fish. Aquat. Sci. 2793, Kidd, K.A., Allen Jarvis, R., Haya, K., Doe, K., and Burridge, L.E. (Eds). ISSN 0706-6457. 2008. pp. 171–179 (NSERC)

31. L Erhardt, P Brousseau, D Faucher, G Roy, C Li, AP Packer, W Li, D Lariviere, J Cornett, R Hogue, C Chakrabarti, J Murimboh, B Andrews, E Waller, T Troczynski, M Chen. Experimental Characterization of Risk for Radiological Dispersal Devices. In: Proceedings of the 2007 CRTI Summer Symposium, Gatineau, QC, June 11-14, 2007. pp. 49–51. (CRTI)

32. L Erhardt, P Brousseau, D Faucher, G Roy, C Li, AP Packer, J Cornett, R Hogue, C Chakrabarti, J Murimboh, B Andrews, E Waller, T Troczynski, M Chen. Experimental Characterization of Risk for Radiological Dispersal Devices. In: Proceedings of the 2006 CRTI Summer Symposium, Gatineau, QC, June 13-15, 2006. pp. 69–70. (PhD)

33. CL Chakrabarti, II Fasfous, T Yapici and J Murimboh. Metal competition in the freshwater environment – implications for environmental risk assessment. Proceedings of the 30^th Annual Aquatic Toxicity Workshop: Sep 28 – Oct 1, 2003, Ottawa, ON. Can. Tech. Rep. Fish. Aquat. Sci. 2510, K. Hedley, S. Roe, A.J. Niimi (Eds). 2003. pp. 33–34 (PDF)

34. J Murimboh and NM Hassan. ICASS 2000 in Winnipeg! L’Actualite chimique canadienne—Canadian Chemical News, 2000, 52, 37. (unfunded)

35. J Murimboh, MT Lam and CL Chakrabarti. Determination of Cd speciation in freshwaters using Rotating Disk Electrode / Square Wave Anodic Stripping Voltammetry and Nafion-Coated and Uncoated Thin Mercury Film Electrodes. In: Proceedings of EnviroAnalysis’98. The Biennial International Conference on Chemical Measurement and Monitoring of the Environment, Eds. R. Clement and R. Burk, May 11–14, 1998, Ottawa, ON, pp. 619–626. (PhD)

36. MT Lam, J Murimboh and CL Chakrabarti. Kinetic speciation of nickel complexes in aqueous environmental samples by Competitive Ligand Equilibration / Adsorptive Cathodic Stripping Voltammetry (CLE/AdCSV). In: Proceedings of EnviroAnalysis’98. The Biennial International Conference on Chemical Measurement and Monitoring of the Environment, Eds. R. Clement and R. Burk, May 11–14, 1998, Ottawa, ON, pp. 589–594. (PhD)

37. CL Chakrabarti, MT Lam, J Murimboh, ALR Sekaly, R Mandal, N Hassan, DC Grégoire, JY Lu and WH Schroeder. A novel scheme for chemical speciation of potentially toxic metals and metalloids in aqueous environmental samples. In: Proceedings of EnviroAnalysis’98. The Biennial International Conference on Chemical Measurement and Monitoring of the Environment, Eds. R. Clement and R. Burk, May 11–14, 1998, Ottawa, ON, pp. 569–580. (PhD)

38. J Murimboh. Secret garden to bloom at Carleton. Peace and Environment News, 1996, 11, 2. (unfunded)

Computer Software

39. C Burroughs and J Murimboh, UNOFFICIAL ELAN Data viewer, v0.91. 2010. (unfunded)

Because of their versatility in a wide variety of chemical reactions, many trace metals are essential micronutrients in biological systems. However, their reactivity can also lead to toxicity even at relatively low levels. This delicate limit between trace metals as micronutrients and toxicants plays a crucial role in the balance of life. Knowledge of the metal distribution among the different physical and chemical forms (i.e. chemical speciation) is therefore essential for predicting their environmental impacts.