High-Sensitivity Analysis of Aldosterone in Low-Volume Serum Samples using Micro-Flow LC-MS/MS for Clinical Research
Accurate and sensitive measurement of aldosterone in plasma or serum is a key parameter for assessment of primary aldosteronism (PA) or other adrenal diseases. Immunoassays suffer from cross-reactivity with metabolites while GC-MS methods require extensive sample preparation and derivatization. High-sensitivity analysis using LCMS/MS, while being usually more specific and simple, is also challenging because of low ionization yield and may require high sample volume. Micro-flow electrospray is a good compromise between ionization efficiency improvement and ease-of-use, compared to nano-electrospray.
Here we present a method to quantify aldosterone in serum samples by micro-flow LC/MS/MS to reach low concentrations using a limited volume of sample.
- Content Type:
- Paper
- Document Number:
- ASMS2019-TP123
- Product Type:
- Liquid Chromatography, Liquid Chromatograph-Mass Spectrometry, Mass Spectrometry
- Keywords:
- plasma, serum, Clinical research, Forensics, Clinical research, LCMS-8060, Nexera Mikros
- Language:
- English
- File Name:
- jpo119092.pdf
- File Size:
- 299kb