An automated on-line minicolumn preconcentration cold vapour atomic absorption spectrometer: Application to determination of cadmium in water samples

► A new on-line system for preconcentration and CVAAS determination of Cd(II) was achieved. ► The system was firstly designed and used in our instrumentation laboratory. ► The system was very sensitive. ► Lewatit Monoplus TP207 chelating resin was firstly used for this purpose.