| RESEARCH ARTICLE |
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| Year : 2012 | Volume
: 1
| Issue : 1 | Page : 19-22 |
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Direct determination of arsenic in potassium citrate tablet using graphite furnace atomic absorption spectrometry
Mohsen Shahlaei1, Alireza Pourhossein2
1 Department of Medicinal Chemistry, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah, I.R.Iran
2 Department of chemical engineering, Science and Research branch, Islamic Azad university, Kermanshah, I.R.Iran
Correspondence Address:
Mohsen Shahlaei
Department of Medicinal Chemistry, Faculty of Pharmacy, Kermanshah University of Medical Sciences, Kermanshah
I.R.Iran
 Source of Support: None, Conflict of Interest: None  | Check |
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In this study, a rapid and simple method based on graphite furnace atomic absorption spectrometry (GFAAS) is described for direct determination of arsenic in potassium citrate tablet samples. Pyrolytic graphite tubes were used as atomizers. Nickel nitrate was used as chemical modifier. The ashing and atomization temperature and the concentration of modifier were also optimized. The detection limit of the method was 0/8 ng/ml As in potassium citrate tablet samples. The relative standard deviation for ten determination of a spiked sample with concentration of 30 ng/ml As ranged was 2.2 %. The accuracy of the method was confirmed by the analysis of spiked samples. The linear rang of calibration is in the range of 0.8-80 ng/ml of arsenic.
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