Fig. 1: Recoveries of four fluorinated alternatives(6:2 Cl-PFAES, 6:2 FTS, OBS and Et-PFOA)with five extractants (MeOH, ACN, MTBE, mixtures of MeOH:MTBE (1:1) or ACN:MTBE (1:1)) in extraction procedures. | npj Emerging Contaminants

Fig. 1: Recoveries of four fluorinated alternatives(6:2 Cl-PFAES, 6:2 FTS, OBS and Et-PFOA)with five extractants (MeOH, ACN, MTBE, mixtures of MeOH:MTBE (1:1) or ACN:MTBE (1:1)) in extraction procedures.

From: A novel pretreatment method for fluorinated alternatives in soil and sediment using accelerated solvent extraction

Fig. 1

The horizontal axis represents four fluorinated alternatives in different five extractants. The vertical coordinate determines the Average Recovery at five different extraction solvents. Black color indicates extraction with methanol solvent, dark blue indicates extraction with acetonitrile solvent, yellow color indicates solvent extraction with methyl tert-butyl ether, light blue color indicates solvent extraction with methanol and methyl tert-butyl ether 1:1 volume ratio, light orange color indicates solvent extraction with acetonitrile and methyl tert-butyl ether 1:1 by volume.

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