13.05.2018 Views

merged

You also want an ePaper? Increase the reach of your titles

YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.

Micro-Solid Phase Extraction of Bisphenol A in Beverage and<br />

Environmental Water using Multi-walled Carbon Nanotubes-Reinforced<br />

Agarose Film<br />

Aow Yong Li Mei<br />

Supervisor: Dr. Loh Saw Hong<br />

Bachelor of Science (Analytical and Environmental Chemistry)<br />

School of Marine and Environmental Sciences<br />

Universiti Malaysia Terengganu<br />

Bisphenol A (BPA) is a synthetic chemical widely applied as the monomer in the<br />

manufacture of polycarbonate plastics and epoxy resins. In this work, a micro-solid<br />

phase extraction (µ-SPE) technique using multi-walled carbon nanotubes (MWCNTs)-<br />

reinforced agarose film function as an adsorbent coupled with high performance liquid<br />

chromatography-fluorescence detection was developed for the analysis of BPA in<br />

beverage and environmental water. Under the optimum extraction conditions, the<br />

method offered excellent linearity with correlation coefficient, r = 0.9977, in the range<br />

of 0.1 to 100 ppb. The limit of detection (LOD) and limit of quantification (LOQ) were<br />

0.02 and 0.1 ppb, respectively. The technique demonstrated acceptable relative<br />

recoveries average ranging 81.0 to 98.7% using coke, 100 plus, river and sea water<br />

samples spiked at 1 and 10 ppb. The proposed µ-SPE was proven simple, costeffective<br />

and consuming trace amounts of organic solvents; thus, contributing towards<br />

green chemistry.<br />

1934 | UMT UNDERGRADUATE RESEARCH DAY 2018

Hooray! Your file is uploaded and ready to be published.

Saved successfully!

Ooh no, something went wrong!