Nowadays water analysis involves various LC-MS(/MS) techniques as well as strategic workfl ows and sophisticated tools for data analysis. Today the key disciplines are the quantitative ‘target analysis’, the suspects screening and the non-target screening. These strategies are currently enhanced thanks to some practical tools. For example, in nontarget screening the new ‘hidden target screening’ concept popped up [1]. This screening approach refl ects also one of the main topics in the recently created FOR-IDENT platform.