Director's Blog

Graduate Opportunity - The Crémazy lab

Posted by jess   |   May 22, 2019

The Crémazy lab ( in the Department of Biological Sciences at the University of New Brunswick, Saint John (UNBSJ) is looking for a strong and motivated student with interests in environmental chemistry and biogeochemistry, to carry out a research project on the characterization of metal bioavailability in natural waters of varying salinity.

Project description: Metal pollution in estuarine and coastal waters is a growing world-wide problem, one with particular relevance in Canada. Total metal concentration ([M]) offers limited insights into metal ecological risk in natural waters. Indeed, metal bioavailability to aquatic organisms is better predicted by the concentration of free metal ions ([Mz+]), which varies with local water physico-chemistry (e.g. pH, dissolved organic matter concentration, salinity). The ionexchange technique (IET) is one of the rare techniques that can selectively measure Mz+ species in natural waters. In this technique, the water is equilibrated with a cation-exchange resin and the amount of metal that binds to the resin (measured by atomic spectroscopy) is proportional to [Mz+] in solution. To date, the IET has only been tested in freshwater and its applicability in estuarine and marine waters remains to be established. The goal of the proposed project is to develop an IET for the measurement of [Mz+] in the full salinity range encountered in natural waters.
We will focus on four metals that are historically important to the Canadian and the New Brunswick mineral sector: copper (Cu), lead (Pb), nickel (Ni) and zinc (Zn). The key milestones will be: i) to build an IET system in the lab; ii) to calibrate the technique for each metal at varying salinity; iii) to test its selectivity and optimize the protocols (e.g. equilibrium time); and iv) to test the IET with natural water samples collected from the field.
Requirements: Applicants should have a BSc degree by time of appointment, be passionate about environmental research, have a good work ethic and strong communication skills. Prior experience in analytical chemistry, environmental chemistry, and/or geochemistry is an advantage.
Start date: Preferably September 2019, but starting date is flexible.
Funding: A full competitive stipend will be offered.
Application: To apply for this position, please email the following to i) a CV; ii) a description of your background and interests; iii) your academic transcripts; iv) the contact information for at least two references. Preference will be given to applications received by May 15, 2019, but application review will continue until the position is filled.

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Recent Comments

06/15/2019 Sheldoiago

Graduate Opportunity is the best opportunity for many of the people in the different fields. We need to focus on our work and utilize it as resumeble formula. I just wanted to share this blog.

06/07/2019 Daniel Perez

Oh! This is great I’m fond of making research and conducting experiments, I hope I can avail this opportunity. Thank you!

06/07/2019 Brian Morgan

The characterization of metal bioavailability in natural waters of varying salinity is a very useful research in environmental science.  I hope it gets proper support from the government. Just like the government helping replace my SS card.

06/05/2019 Zach Duncan

Another great opportunity for students who are interested in doing research projects! is in the water business and we eagerly await the result of the characterization of metal bioavailability in natural waters of varying salinity through this project.

06/04/2019 John Davis

Wow! Amazing oppurtunity! How I wish to be part of it. My father just want me to manage his pest extermination in manassas va and towing service in manassas va companies at the moment.

05/31/2019 segment led

Graduate Opportunity, Great !
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