Page 11 - Solutions for Plastic Evaluation

Additives Evaluation of Raw Materials

LC/MS

Analysis of Additives in Plastic Using LCMS-2020
An organic solvent (in this case, THF/MeOH = 1/1) was added to Pretreatment Method
a known quantity of a plastic sample. It was then sonicated and Plastic Materials Evaluation of
0OF QPMZNFS CFBE
the supernatant was extracted and directly analyzed. The sample
was ionized by ESI and APCI, and was monitored simultaneously THF/MeOH
in both positive and negative modes using high-speed polarity (50/50)
1 mL
switching. Of the six types of additives observed, components
D and E were detected with higher sensitivity in negative mode. 6MUSBTPOJD QSPDFTTJOH
Simultaneous monitoring in both modes provides sensitive and
accurate data, because the optimal ionization parameters can be Supernatant Raw Materials Evaluation of
applied to each compound.
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Polymer beads used
in the analysis TBNQMF Product Evaluation

Product Information

MS Chromatograms of Polymer Additives

LAAN-D-XX009A 11