Direct determination of the cation-exchange capacity of soils with automatic sample pretreatment in a flow system

Preconcentration and speciation of chrom

Preconcentration and speciation of chromium by the determination of total chromium and chromium(III) in natural waters by flame atomic absorption spectrometry with a chelating ion-exchange flow injection system

✍ R.M. Cespón-Romero; M.C. Yebra-Biurrun; M.P. Bermejo-Barrera 📂 Article 📅 1996 🏛 Elsevier Science 🌐 English ⚖ 778 KB

A simple method for the determination of chromium(III) and total chromium in a flow injection system comprising chelating ion-exchange and flame atomic absorption spectrometry (FAAS) was described. A minicolumn (85 mm x 1.6 mm i.d.) filled with a poly(aminophosphonic acid) chelating resin (PAPhA, 20