Determination of trace element concentrations in tomato samples at different stages of maturation by ICP OES and ICP-MS following microwave-assisted digestion

► The concentrations of 15 elements were determined in three species of tomatoes by ICP OES and ICP-MS. ► The type of sample, form of cultivation and maturation influenced the concentrations of trace elements in tomato samples. ► Tomatoes in the final stages of maturation showed higher concentrations ​​for most elements that were measured. ► Organic tomatoes had higher levels of micronutrients and lower levels of contaminants.