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Schematic of (a) the segmented-flow SERS system.112 Adapted with permission from Strehle et al., Anal. Chem. 79, 1542 (2007). Copyright 2007 American Chemical Society (b) electrically assisted regeneration.111 Adapted with permission from Meier et al., Lab Chip 15, 2923 (2015). Copyright 2015 The Royal Society of Chemistry (RSC).
