A Rapid Derivatization Based Lc–Ms/Ms Method for Quantitation of Short Chain Fatty Acids in Human Plasma and Urine

Abstract

<b>Aim:</b> Objective of this study is to develop a robust multi-matrix LC-MS/MS for the quantitation of endogenous short-chain fatty acids (SCFA) biomarkers in human plasma and urine. <b>Methods:</b> Developed method utilizes stable isotope-labeled internal standards, high-throughput derivatization procedure for sample preparation and LC-MS/MS analysis using multiple reaction monitoring transitions in positive electrospray ionization mode. <b>Results:</b> Surrogate matrix method was used for quantitation. Accuracy, precision, parallelism, curve linearity, derivatization efficiency, stability and recovery were all evaluated, and the results were well within the acceptable criteria. <b>Conclusion:</b> SCFA levels in human plasma and urine of inflammatory bowel disease patients versus non-disease subjects were quantified and compared by LC-MS/MS.