High-performance liquid chromatographic separation of natural and synthetic desulphoglucosinolates and their chemical validation by UV, NMR and chemical ionisation-MS methods

Methods are described for the optimised extraction, desulphation and HPLC s eparation of desulphoglucosinolates, These methods provide rapid separation , identification and quantitative measurements of glucosinolates extracted from Brassica napus L and related crops, of unusual glucosinolates found in crucifer weed species, and also of synthetic alkylglucosinolates, The desu lphoglucosinolates used in these studies were either chemically synthesised (at least one example from each major structural class), or purified from various plant sources. Validation of the identities of the desulphoglucosin olates was by comparison of retention times with standards, and by UV,H-1- and C-13-NMR and chemical ionisation MS analysis. A list of useful species, and the specific tissues, from which high concentrations of standards can be extracted is included. Copyright (C) 2001 John Wiley & Sons, Ltd.