A whole-filter FTIR imaging workflow examined takeaway-container rinse and soak extracts.
Source details
Xuejun Zhou, Jin Wang, Jiefang Ren. Molecules. 2022.
DOI: 10.3390/molecules27092646
Findings
The authors identified several synthetic polymers as well as cellulose in container extracts. Their pixel-based counting definition limits comparison with particle-by-particle counts. The library uses this paper to explain method differences and does not reproduce its abundance estimates.
Methods and scope
Most containers were rinsed, shaken and soaked; nylon samples were treated in boiling water. Whole-filter FPA-FTIR mapping matched spectra to a library. Glass-beaker controls were processed.
What this source can support
Context on polymer identification, cellulose exclusion, and counting definitions.
The data-analysis section treats identified pixels as particle numbers without a documented connected-component particle reconstruction. Cellulose is inconsistently included in composition denominators. No numerical release count from this study is accepted here. Supplementary data not reviewed.
Related evidence
Source provenance
Primary PDF SHA-256: 0e7d682e83f6752782e60ae30f68d3351f9ecc7f8e3ba90c8ea94992b67c0d91
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