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.
Representative GC×GC chromatograms displaying the presence of aromatic amine derivatives in: (a) non-smoker’s urine; (b) smoker’s urine; (c) smoker’s urine with isomeric homologs of aromatic amines labeled as C1- to C4-anilines and aminoacetophenone (d) mass spectra of iodinated derivatives of aminoacetophenone and C3-aniline. Adapted with permission from Ref. [148]. Copyright © 2023 by the authors; Springer Nature Group, Berlin, Germany.
