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.
Spectrogram of affinity components of PDGFRβ from S. miltiorrhiza and S. chinensis by micro PDGFRβ-offline-UPLC/MS systerm: (A) UV chromatogram of S. miltiorrhiza and S. chinensis extracts on PDGFRβ column, (B) Mass spectrum of retention and non-retention components on PDGFRβ column, (C) UV chromatogram of standards of Sal B and Gom D on PDGFRβ column.
