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Table 4 Application of vortex assisted-DLLME for determination of repaglinide in environmental water

From: Response surface optimization of a vortex-assisted dispersive liquid–liquid microextraction method for highly sensitive determination of repaglinide in environmental water by HPLC/UV

River water Tap water
Spiked (ng/mL) Found* (ng/mL) %Recovery Spiked (ng/mL) Found* (ng/mL) %Recovery
5 4.9 98.6 5 5.1 101.4
20 20.9 104.5 20 20.3 101.7
100 100.7 100.7 100 99.5 99.5
Mean   101.3    100.8
%RSD   2.95    1.17
  1. *Mean of triplicate determination for each concentration