Resins synthesized from qumohn-b-01 and resorcmol or hydroqmnone, with furfuraldehyde, formaldehyde or benzaldehyde as cross-hnkmg agent, were used for the preconcentrafion of nanogram amounts of lead The rate of exchange and activation energy of lead exchange were calculated Column separations of l
Preconcentration and ICP-AES determination of metal ions with an on-line chelating ion-exchange system
β Scribed by V. Porta; C. Sarzanimi; O. Abollino; E. Mentasti
- Publisher
- Elsevier Science
- Year
- 1992
- Weight
- 78 KB
- Volume
- 17
- Category
- Article
- ISSN
- 0923-1137
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## An on-line column preconcentration technique for flow-injection flame atomic absorption spectrometry has been developed for the determination of trace metals in natural waters. A minicolumn (20 mm X 2 mm id.) filled with a poly(aminophosphonic acid) chelating resin (PAPhA, 20-30 mesh) was used
The preconcentratlon of thorium and uranium on Dowex 50-X8 was studled as a method for the preconcentratlon of these cations pnor to then determination by flow qectlon unth spectrophotometnc detection using Arsenazo III m 3 6 M HCI stablhzed with Tnton X-100 as chromogenic reagent The preconcentrati
An on-line sample pretreatment method was developed to preconcentrate trace metal ions from water samples. complexes of metal ions with butane-2,3-dione bis(N-pyridinoacetyt hydrazone) were retained on a column packed with Amberlite XAD-4 resin at pH 8-9. The metal complexes were removed from the co