ArticleAnalytical and bioanalytical chemistry2026
Development of a sample preparation protocol for fast fluorine screening of sealing materials-Considering potential PFAS regulations.
Article in Analytical and bioanalytical chemistry, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Elastomers commonly used as sealing materials are highly networked rubbery polymers. They may contain different pollutants such as fluorinated compounds like per- and polyfluoroalkyl substances (PFAS), for example used as additives to enhance the performance of the elastomer under a variety of chemical and mechanical stresses. As of now, no reliable recycling strategy for elastomers is available and they are consequentially disposed of by incineration or in landfills. Due to the potential wash out of additives or other pollutants into landfill leachates, elastomers present a possible source of continuous environmental pollution. A processing protocol for elastomers is required as a basis to enable the reliable determination of extractable fluorine: Here, we describe a quick and robust sample preparation protocol to determine extractable fluorine in various sealing materials. The optimization was aimed for time efficiency and robustness of results; sample preparation was conducted for fluorine sum parameter analysis via high resolution-continuum source-graphite furnace molecular absorption spectrometry (HR-CS-GFMAS). Samples were first roughly shredded to 2 mm and then further milled and sieved to defined particle size fractions. Different size fractions were tested and the extraction of the size fraction between 125 and 250 µm was found to be the best trade-off between extraction efficiency, time efficiency and sample loss. Subsequent methanolic or aqueous extraction and HR-CS-GFMAS analysis of various polymer samples revealed quantifiable extractable fluorine content for most samples. In the future, the sample processing method developed could make a valuable contribution as a standard operating procedure (SOP) for a time-efficient sample preparation for subsequent extraction and screening of sealing materials in prospect of the strict regulation on PFAS proposed by the European Chemicals Agency (ECHA).
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.