Virginia Pszczolkowski

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Questions related from Virginia Pszczolkowski

Unexpected m/z for derivatized 5-hydroxyindoleacetic acid in ESI LC/MS?

Hello all! I am planning to use an EZ:faast kit (https://www.phenomenex.com/Products/AminoAcidDetail/EZfaast) to analyze, among other compounds, 5-hydroxyindoleacetic acid (5HIAA) from whole...

19 May 2021 7,488 5 View

Is there a "gold standard" for amino acid derivatization for LC/MS analysis?

We've recently started using a single quad LC/MS system (Shimadzu LC/MS-2020, for what it's worth) for mouse plasma AA analysis (the 20 common EAA and NEAA). Pre-column derivatization seems to be...

02 January 2019 1,539 5 View