Elemental characterisation of strawberry grown in Islamabad by k0-instrumental neutron activation analysis and atomic absorption spectrophotometry and its dietary assessment
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- 作者：Mohammad Wasim (1) wasim1968@gmail.com
Nasir Khalid (1)
Azeem Asif (2)
Mohammad Arif (1)
Jamshed Hussain Zaidi (1) - 关键词：Strawberry – k 0 ; NAA – AAS – Trace elements – Daily intake
- 刊名：Journal of Radioanalytical and Nuclear Chemistry
- 出版年：2012
- 出版时间：June 2012
- 年：2012
- 卷：292
- 期：3
- 页码：1153-1159
- 全文大小：239.5 KB
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- 刊物类别：Chemistry and Materials Science
- 刊物主题：Chemistry
Nuclear Chemistry
Physical Chemistry
Nuclear Physics, Heavy Ions and Hadrons
Diagnostic Radiology
Inorganic Chemistry - 出版者：Akad茅miai Kiad贸, co-published with Springer Science+Business Media B.V., Formerly Kluwer Academic
- ISSN：1588-2780
文摘
Mineral contents of strawberry, collected from different farms of Islamabad were analysed by semi-absolute k 0-instrumental neutron activation analysis and atomic absorption spectrophotometry. The samples were irradiated at two research reactors located in Pakistan Institute of Nuclear Science & Technology (PINSTECH), Islamabad. The analytical methodologies were validated by analysing reference materials, IAEA-336 (lichen) and IAEA-V-10 (hay powder). In all the samples, a total of 26 elements were quantified, among them 16 elements (Ca, Cd, Cl, Co, Cr, Cs, Fe, K, Mg, Mn, Na, Pb, Ru, Sc, Sr and Zn) were found in all the samples. The determined elemental concentrations in strawberry were compared with the reported values from other countries. In comparison with the mineral contents of other fruits, strawberry stands best source of Mn and the second most important source of K after banana. Intake of trace metals through this source was calculated and it was found that strawberry provides Mn (1.95–3.68 mg/kg), Cr (19.2–46.3 × 10?3 mg/kg), Fe (3.45–8.72 mg/kg), K (1,520–1,670 mg/kg) and Mg (100–220 mg/kg), which forms 26, 19, 14, 7 and 7% of the recommended dietary allowances for the respective metals. The daily intake of Cd and Pb were compared with the provisional tolerable weekly intake defined by FAO/WHO.