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. 2022 May 31;4:47. Originally published 2019 Mar 8. [Version 3] doi: 10.12688/wellcomeopenres.15141.3

Figure 4. Post-column infusion (qualitative visualization of matrix effects) infusing 10 µl/min water solution of 1 µg/ml ceftriaxone (producing the higher signal intensity) and 1 µg/ml cefotaxime (internal standard, producing the lower signal intensity).

Figure 4.

Overlay of 3 injections of extracted blank plasma samples, Donor A & Donor B (both heparin) and one blank plasma with CPD as anticoagulant. *RT = Retention time.