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Cloud point extraction for spectrophotometric determination of nanosized copper oxide in food samples and using Taguchi orthogonal design to multivariate optimization
| Content Provider | Semantic Scholar |
|---|---|
| Author | Malayjerdi, F. Heidari, Taherh Zolghanein, J. |
| Copyright Year | 2014 |
| Abstract | Triton X-1 based cloud point extraction has been demonstrated to be an advantageous approach for the recovery of nanosized copper oxide[1-3] (NCO) from rice. Nano Copper Oxide in the initial aqueous solution was complexed with sodium diethyldithiocarbamat (NaDDC) . Dilution of the surfactant-rich phase with acidified methanol was performed after phase separation and nano Copper Oxide contents were measured by UV-Visible spectrophotometric technique. The variables affecting the cloud-point extraction were optimized using Tauguchi orthogonal array design. The effective factors including pH, extraction time, temperature extraction ,amount of the triton X100 , concentration of salt and concentration of the ligand were studied and optimized . Under the optimized condition , the calibration graph was linear in the range of 1-30μg.L for Nano Copper Oxide. The limit of detection (LOD) was 0.93 μg.L. The relative standard deviation (RSD % n=7) for the determination of 10 μg.L was 4.2% . The proposed method has been applied successfully to determine the trace amount of nano copper oxide in some of rice samples. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://profdoc.um.ac.ir/articles/a/1043557.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
