Skip to main content


Springer Nature is making SARS-CoV-2 and COVID-19 research free. View research | View latest news | Sign up for updates

Figure 9 | Fluids and Barriers of the CNS

Figure 9

From: A study protocol for quantitative targeted absolute proteomics (QTAP) by LC-MS/MS: application for inter-strain differences in protein expression levels of transporters, receptors, claudin-5, and marker proteins at the blood–brain barrier in ddY, FVB, and C57BL/6J mice

Figure 9

An example of ambiguous SRM/MRM chromatograms of a biological sample. Tryptic digests of a biological protein sample spiked with IS peptides were subjected to LC-MS/MS and analyzed in SRM/MRM mode. A-D: SRM/MRM chromatograms of four SRM/MRM transitions for a target (non-labeled) peptide. E-H: SRM/MRM chromatograms of four SRM/MRM transitions for the corresponding IS peptide.

Back to article page