We used FTIR-ATR to determine vinyl acetate from a glue stick
using the internal standards method. We used the standards with 12,
18, 25, and 40% poly(ethylene-co-vinyl acetate). The peak height at
1020 cm^-1 is due to the vinyl acetate copolymer (our analyte) and
the peak height at 720 cm^-1 is due to the polyethylene (the
internal standard). Our unknown is a store-bought glue stick that
is EVA-based.
We found the peak heights for the standards for the peaks on...