Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8946067 | Chemosphere | 2018 | 31 Pages |
Abstract
A method was modified for the preconcentration of platinum (Pt), palladium (Pd) and rhodium (Rh) from seawater by a solid phase extraction using a commercially available resin Nobias-chelate PA1®. All the determination was conducted using inductively coupled plasma mass spectrometry (ICP-MS) which had a low detection limit for Pt, Pd and Rh, about 16.53, 16.41 and 26.88â¯pgâ¯Lâ1, respectively. It was found that the adsorption performance of the resin was closely related to the matrix, ligands and pH of the samples. Significant difference in recovery was found in various samples: seawaterâ¯ââ¯artificial seawaterâ¯>â¯ultra-pure deionized water. This method had low method blank in the range of 5.51-8.89â¯pgâ¯Lâ1 and high enrichment factor of up to 180-200. The recoveries of Pt and Pd were 93â¯Â±â¯4.2% in the spiked real seawater. However, the recovery of Rh on the resin was below 70% but stable in the range of 65-68%. It indicated that the Rh recovery seemed to be reproducible and higher volumes of seawater must be processed in order to obtain the lower limit of quantification and excellent recovery.
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Authors
Kai Liu, Xuelu Gao, Li Li, Chen-Tung Arthur Chen, Qianguo Xing,