Seminar Series 64: Assoc. Prof. Dr. Joselito Quirino

Seminar Title :
“Electrodriven Sample Preparation in Chemical Analysis”

Date : 22 March 2016 (Tuesday)Time : 2.30 pm – 4.30  pm
Venue : Lecture Theater 1, N31, Center of Sustainable Nanomaterials,
Ibnu Sina Institute For Scientific & Industrial Research,
Universiti Teknologi Malaysia, Skudai

Joselito P. Quirino, PhD
Associate Professor
Australian Centre for Research on Separation Science,
University of Tasmania, Australia


“Electrodriven Sample Preparation in Chemical Analysis”

Sample preparation has a crucial role in an analytical workflow, because it transforms the analyte in the sample into a suitable state for separation/detection and thus it directly influences the quality of the result. However, sample preparation accounts for more than 80% of the time spent in analytical workflow.  In addition, traditionally applied approaches such as liquid-liquid extraction and solid-phase extraction use substantial resources (i.e., organic solvents) and labour which adversely affect the economical and ecological aspects of sample preparation. This talk will present our recent efforts in environmentally-friendly or green sample preparation.  The first part will deal with on-line sample concentration or stacking for high sensitivity analysis in capillary electrophoresis [1-3].  The second part is on the use of an electric field for purely aqueous liquid phase extraction of analytes from liquid samples [4-6].