ArticleAnalytical and bioanalytical chemistry2026
Determination of three previously unidentified polycyclic aromatic hydrocarbons of molecular mass 302 Da in particulate Standard Reference Materials (SRMs) and combustion-related samples.
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
5 authors.
Funding
Abstract
Polycyclic aromatic hydrocarbons (PAHs) of molecular mass (MM) 302 Da comprise numerous structural isomers that are of high concern for human health. Because of their multiplicity, low abundance in the environment, and limited availability of authentic standards, their occurrence, composition, and environmental health risk remain not well characterized. Here we extend the characterization of MM 302 Da PAH isomers in combustion-related particulate matter with the addition of four newly synthesized and previously unidentified MM 302 Da isomers: dibenzo[a,l]fluoranthene (DBalF), dibenzo[b,l]fluoranthene (DBblF), dibenzo[a,j]fluoranthene (DBajF), and naphtho[2,1-j]fluoranthene (N21jF). Using a coupled high-performance liquid chromatography/gas chromatography-mass spectrometric system with a 50% phenyl methylpolysiloxane stationary phase, 24 MM 302 Da isomers were annotated in four Standard Reference Materials, SRM 1648a, SRM 1649b, SRM 1650b, and SRM 2975, and in four combustion-related particulate matter samples consisting of two traffic-impacted filters and two laboratory-generated combustion samples. Three of the four previously unidentified compounds, DBalF, DBajF, and N21jF, were chromatographically resolved and quantified for the first time in these samples. Quantitative analysis of nine MM 302 Da PAHs (∑MM302Da) showed that these compounds accounted for roughly 0.66-4.1% of the total mass for 50 PAHs. The previously unidentified isomers were recurring but generally minor contributors to the ∑MM302Da burden, with N21jF representing 8-14%, DBalF typically 6-10% (but 23% in SRM 2975), and DBajF varying between 1 and 5%. These results demonstrate both the ubiquity and compositional variability of MM 302 Da PAHs in combustion-derived particulate matter and provide new reference data for analytical investigations of MM 302 Da PAHs.
Indexed as
Identifiers
41979650What 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.