Determination of sulphur in various vegetables by solid sampling high-resolution electrothermal molecular absorption spectrometry.

•Sulphur was determined in various vegetables via CS using a SS HR-CS ETAAS.•Samples were directly introduced into the Ru coated graphite furnaces.•Palladium+citric acid were used as a modifier.•The LOD and m0 of the method were 7.5 and 8.7ng of S, respectively.•Homogeneity of S distribution in CRM and a grinded real sample were investigated.