Potential of Presep<sup>®</sup> PolyChelate as a Chelating Resin: Comparative Study with Some Aminocarboxylic Acid-type Resins
The potential of Presep<sup>®</sup> PolyChelate as a chelating resin was studied in detail. The chelating resin with extraction capacity for Cu of 0.30 mmol L<sup>−1</sup> could quantitatively extract Cd, Co, Cu, Fe, Mo, Ni, Pb, V, and Zn at pH 4 or 5.5; however, only very scant amounts of Na, K, Mg, and Ca were captured at pH levels below 7. The quantitative extraction could be achieved in 100 – 1000 mL of artificial seawater and at a flow rate of 3 – 30 mL min<sup>−1</sup>. The performance of Presep<sup>®</sup> PolyChelate was compared to the other aminocarboxylic acid-type chelating resins, including Nobias Chelate-PA1, Chelex 100, Muromac B-1, Lewatit TP 207, and NTA Superflow, under the same conditions. The solid-phase extraction of the nine elements in the certified reference material (ES-L-1, ground water) and a commercially available table salt was also demonstrated.
- Analytical Sciences
Analytical Sciences 29(11), 1107-1112, 2013