Grad Chat - Queen's School of Graduate Studies
Grad Chat - Queen's School of Graduate Studies
Alastair Keirulf, PhD in Chemistry, supervised by Dr Diane Beauchemin

Topic: Developing the Continuous Online Leaching Method for use in Bioaccessibility Risk Assessments

Overview: When soil is contaminated, we must perform a risk assessment to determine the potential for hazard towards humans who may work, play, or live in contact with the soil. A common method for modeling this soil exposure is through a bioaccessibility study, which can be performed in-lab without the need for animal subjects. My work is on validating a continuous on-line leaching method. Conventional methods use a batch method of analysis, which can take hours to complete, but we have seen results with the online leaching method take as low as 30 minutes!