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http://nopr.niscpr.res.in/handle/123456789/20646| Title: | Determination of Ni(II) and Co(II) by FAAS after preconcentration on modified alumina column |
| Authors: | Shemirani, Farzaneh Kozani, Reyhaneh Rahnama Niasari, Masood Salavati Abkenar, Shiva Dehghan Jamali, Mohammad Reza Mirroshandel, Aazam Alsadat |
| Issue Date: | May-2003 |
| Publisher: | NISCAIR-CSIR, India |
| Abstract: | A method for the determination of Co(II) and Ni(II) by flame atomic absorption spectrometry after preconcentration on a minicolumn of alumina modified with sodium dodecyl sulfate and schiff's base has been developed. Effects of pH, flow rate, volume of sample solution, capacity of sorbent and interference of foreign ions on the recovery of the analytes have been investigated. Under the optimized conditions (pH = 5; flow rate =15 ml min-1), recovery was greater than 98%. The relative standard deviations (10 replicate analyses) at the 50 ng ml-1 level are 2.5% for Ni(II) and 3.2% for Co(II) and the corresponding limits of detection (3s, n =10) are 0.014 ngml-1 for Ni(II) and 0.007 ng ml-1 for Co(II). The method has been applied for the determination of Ni(II) and Co(II) in natural waters and standard materials. |
| Page(s): | 1086-1088 |
| ISSN: | 0975-0975(Online); 0376-4710(Print) |
| Appears in Collections: | IJC-A Vol.42A(05) [May 2003] |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| IJCA 42A(5) 1086-1088.pdf | 267.03 kB | Adobe PDF | View/Open |
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