| Journal: | Quimica nova |
| Database: | PERIÓDICA |
| System number: | 000313378 |
| ISSN: | 0100-4042 |
| Authors: | Ganjali, Mohammad Reza1 Babaei, Leila Hajiagha Badiei, Alireza Saberian, Kamal Behbahani, Seiedmahmoudreza2 Ziarani, Ghodsi Mohammadi3 Salavati- Niasari, Masoud4 |
| Institutions: | 1Tehran University, Department of Chemistry, Teherán. Irán 2Tehran University, Abureihan Higher Education Complex, Teherán. Irán 3Alzahra University, Department of Chemistry, Teherán. Irán 4Kashan University, Department of Chemistry, Kashan. Irán |
| Year: | 2006 |
| Season: | Jun |
| Volumen: | 29 |
| Number: | 3 |
| Pages: | 440-443 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | Chromium(III) at the ng L-1 level was extracted using partially silylated MCM-41 modified by a tetraazamacrocyclic compound (TAMC) and determined by inductively coupled plasma optical emision spectrometry (ICP OES). The extraction time and efficiency, pH and flow rate, type and minimum amount of stripping acid, and break- through volume were investigated. The method's enrichment factor and detection limit are 300 and 45.5 pg mL-1, respectively. The maximum capacity of the 10 mg of modified silylated MCM-41 was found to be 400.5±4.7 µg for Cr(III). The method was applied to the determination of Cr(III) and Cr(VI) in the wastewater of the chromium electroplating industry and in environmental and biological samples (black tea, hot and black pepper) |
| Disciplines: | Química |
| Keyword: | Química inorgánica, Cromo hexavalente, Cromo trivalente, Determinación, Espectroscopía de emisión óptica |
| Keyword: | Chemistry, Inorganic chemistry, Hexavalent chromium, Trivalent chromium, Determination, Optical emission spectroscopy |
| Full text: | Texto completo (Ver HTML) |
