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.
(A) Schematic of SFME, and (B) calibration curve of obtained methamphetamine in bovine blood by SFME-MS through adding internal standard (IS) into the extraction solvent (Reprinted with permission49. Copyright 2014 Wiley-VCH). (C) Schematic of three-phase SFME, D) MS/MS spectra of glutamine (2 ng/mL) in the synthetic urine sample by three-phase SFME and direct MS analysis (Reprinted with permission50. Copyright 2018 Elsevier).
