Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Typical chromatogram obtained from spiked plasma extracted by proposed method. (a) blank (b) plasma sample spiked with sodium valproate (20 µg/ml). In both cases DLLME method was performed and 1 µl of the collected phase was injected into GC. Extraction conditions: extraction solvent, chloroform (40 µl); disperser solvent, acetone (1 ml); sample volume,10 ml; pH, 1.0; concentration of NaCl, 4% (w/v); extraction time, ~0 min; centrifugation speed, 6000 rpm; centrifugation time, 6 min
