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Table 4 Analytical results for the determination of phenols in seawater samples from the South China Sea and Wastewater

From: A simple strategy based on fibers coated with surfactant-functionalized multiwalled carbon nanotubes to improve the properties of solid-phase microextraction of phenols in aqueous solution

 Concentration (ng/mL)ndcndndndnd
RSD (%, n = 3)
 Concentration (ng/mL)ndndndndnd
RSD (%, n = 3)
Holiday beach
 Concentration (ng/mL)ndndndndnd
 RSD (%, n = 3)
 Concentration (ng/mL)3.64 ± 0.17ndndndnd
 RSD (%, n = 3)
  1. aSpiked with phenols at 10.0 ng/mL
  2. bSpiked with phenols at 100.0 ng/mL
  3. cnd = not detected. Three parallel experiments were conducted for each sample