This document introduces the Agilent Evaporative Light Scattering Detector (ELSD) in the analysis of non-chromophoric samples such as tryptophan and its metabolites. The ELSD can achieve more accurate detection of tryptophan and its metabolites without the need for derivatization.
This document provides a technical overview of analyzing non-chromophoric samples, such as tryptophan and its metabolites, using High Performance Liquid Chromatography (HPLC). It highlights how the Agilent Evaporative Light Scattering Detector (ELSD) outperforms traditional detectors by not relying on the optical properties of the analyte.
The specified flow rate for the analysis is 1 mL/min.
The recommended column has dimensions of 4.6 x 250 mm.
The eluent consists of 40 mM Ammonium acetate at pH 6 with 7% Acetonitrile.