COMPOUNDS AND METHODS FOR DETECTION AND QUANTIFICATION OF CARBOXYLIC ACIDS
申请人:Li Liang
公开号:US20120165227A1
公开(公告)日:2012-06-28
The present disclosure includes compounds of Formula I: wherein R
1
-R
3
, Ar, and n are as defined herein, and methods for the quantification of carboxylic acids in samples, specifically biological samples, using the compounds of Formula I. The compounds of Formula I are novel stable isotopic reagents that are useful in differential isotopic labeling methods.
High-Performance Isotope Labeling for Profiling Carboxylic Acid-Containing Metabolites in Biofluids by Mass Spectrometry
作者:Kevin Guo、Liang Li
DOI:10.1021/ac102146g
日期:2010.11.1
We have developed a new isotope labeling method, based on the use of isotope-coded p-dimethylaminophenacyl (DmPA) bromide as a reagent, combined with liquid chromatography−mass spectrometry (LC−MS) for high-performance metabolome analysis with a focus on profiling carboxylic acid-containing metabolites. Derivatization is simple, fast (1 h plus 30 min for quenching the reaction), and applicable to a