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We used FTIR-ATR to determine vinyl acetate from a glue stick using the internal standards method....

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Chemistry

We used FTIR-ATR to determine vinyl acetate from a glue stickusing the internal standards method. We used the standards with 12,18, 25, and 40% poly(ethylene-co-vinyl acetate). The peak height at1020 cm^-1 is due to the vinyl acetate copolymer (our analyte) andthe peak height at 720 cm^-1 is due to the polyethylene (theinternal standard). Our unknown is a store-bought glue stick thatis EVA-based.

We found the peak heights for the standards for the peaks on 720cm^-1 and 1020 cm^-1. What I am aware of is that those areuncorrected peaks. How do you correct the peaks?

After that, we plan on taking the ratio of the concentration inpercentages and the ratio of absorbances and plot them, using it asa calibration curve.

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