Electrothermal atomic absorption spectrometric determination of cadmium in bangladeshi vegetables with a metal tube atomizer and slurry sampling technique |
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| Authors: | Md. Nurul Amin Satoshi Kaneco Tohru Suzuki Kiyohisa Ohta |
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| Affiliation: | 1. Department of Chemistry for Materials , Faculty of Engineering, Mie University , Tsu, Mie 514-8507, Japan;2. Environmental Preservation Center , Mie University , Tsu, Mie 514-8507, Japan |
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| Abstract: | ![]()
Ultrasonic slurry sampling electrothermal atomic absorption spectrometry with a molybdenum tube atomizer has been applied for the determination of cadmium in vegetable samples in Bangladesh. The suspension-stabilizing medium was 10% glycerol solution. The optimum pyrolysis temperature was 300°C. The detection limit was 13?fg (3S/N). Matrix element interference was studied and it was found that thiourea as a chemical modifier eliminated the interference. The results for the determination of cadmium in vegetable samples by the proposed method were in good agreement with those measured in dissolved acid-digested samples. The method enables rapid calibration, and simple and rapid analysis of cadmium in vegetable samples at low cost. |
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| Keywords: | Electrothermal atomic absorption spectrometry Metal tube atomizer Slurry sampling technique Cadmium Bangladeshi vegetables |
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