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. 2016 Jun 9;11(6):e0156488. doi: 10.1371/journal.pone.0156488

Fig 2. Partial 31P-NMR spectra of NaOH-EDTA extracts of the surface sediments in freshwater ecosystems of Eastern China.

Fig 2

A: phosphonate; B: orthophosphate; C: orthophosphate monoesters; D: orthophosphate diesters; E: phospholipids; F: deoxyribonucleic acids; G: pyrophosphates; H: polyphosphates.