5 and 6, respectively. The subclasses in the class of FASA-based PFAA precursors follows the structural pattern as CnF2n+step 1-SO2N(CmH2m)-R 1 . 5). First, the perfluoroalkyl chain length increases mainly due to increase in the value of t-SNE-PCA-2. In addition, the sizes of N-alkyl group e functional group but different sizes of N-alkyl group. Furthermore, the PFASs with the same perfluoroalkyl chain but different functional groups escort reviews Denton TX are also separated. The n:2 fluorotelomer subclasses in the class of FASA-based PFAA precursors follows the structural pattern as CnF2n+step one-C2Hcuatro-R 1 . The distribution pattern of the n:2 fluorotelomers are similar to the FASA-based precursors—the perfluoroalkyl chain length increases mainly along t-SNE-PCA-2 (except fluorotelomer phosphates) while the functional groups separate subclasses. Similar patterns in the perfluoroalkyl chain lengths, size of alkyl group(s), and the separation based on functional groups are also observed in the subclasses of other classes, as is shown in figshare File 1.
2D projection off PFAS-Chart (TSNE-PCA-dos and you may TSNE-PCA-3) exhibiting all of the subclasses under the family of FASA-built PFAA precursors. Abbreviations: FASEs: perfluoroalkane sulfonamidoethanols; FASAs–perfluoroalkane sulfonamides; FASAAs: perfluoroalkane sulfonamidoacetic acids; FASACs: perfluoroalkane sulfonamidoethyl acrylates; FASMACs–perfluoroalkane sulfonamidoethyl methacrylates. (more…)