Mar 01, 2015 · For LC–MS analysis, a Hewlett Packard Aijiren Series LC/MS (Aijiren Technologies, Waldbronn, Germany) equipped with autosampler, quaternary pump system, DAD detector, degasser, MSD trap with an electrospray ion source (ESI) was applied, and software for data processing was HP ChemStation, Bruker Daltonics 4.2 and Data Analysis 4.2.