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Preconcentration of ultra-traces of Cu(II) in water samples using SBA-15 sorbent modified with a thiocarbohydrazide ligand prior to determination by flame atomic absorption spectrometry
| Content Provider | Semantic Scholar |
|---|---|
| Author | Payehghadr, Mahmood Qezelje, Hamidreza Haghgoo Nourifard, Farzaneh Attaran, Abdolmohammad Kalhor, M. Seyfi |
| Copyright Year | 2018 |
| Abstract | A simple, reliable and rapid method for the extraction of ultra-trace copper(II) using nanoporous SBA-15 sorbent modified with a thiocarbohydrazide ligand, and determination by flame atomic absorption spectrometry is presented. The optimum parameters of the method were obtained as pH of aqueous solution 5, sorbent amount 2 mg, stirring time 20 min and 0.4 M HCl solution as the eluent solvent. This method has a breakthrough volume greater than 1500 mL with a concentration factor of more than 300, linear range 0.8–2500.0 µg L-1, limit of detection 0.253 µg L-1 and limit of quantification 0.844 µg L-1 for copper(II). The capacity of 2 mg of modified SBA-15was found to be 123.00 ± 0.04 mg g-1. Standard deviations were 3.3, 2.3 and 2.1 % for 1, 2 and 4 mg mL-1, respectively ( n = 5). This method was successfully applied for the determination of copper(II) in different real samples, especially in the food samples. |
| Starting Page | 489 |
| Ending Page | 501 |
| Page Count | 13 |
| File Format | PDF HTM / HTML |
| DOI | 10.2298/JSC180606093P |
| Alternate Webpage(s) | https://www.shd-pub.org.rs/index.php/JSCS/article/download/6950/719 |
| Alternate Webpage(s) | https://doi.org/10.2298/JSC180606093P |
| Volume Number | 84 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
