Instrumental neutron activation analysis to determine inorganic elements in paddy soil and rice and evaluate bioconcentration factors in rice

ผู้แต่ง

  • Prapamon Seeprasert Occupational Health and Safety Program, School of Health Science, Mae Fah Luang University, Chiang Rai, 57100, Thailand
  • Patana Anurakpongsatorn Department of Environmental Technology and Management, Faculty of Environment, Kasetsart University, Bangkok, 10900, Thailand
  • Sirinart Laoharojanaphand Thailand Institute of Nuclear Technology (TINT), Ladyao, Chatuchak, Bangkok, 10900, Thailand
  • Arporn Busamongkol Thailand Institute of Nuclear Technology (TINT), Ladyao, Chatuchak, Bangkok, 10900, Thailand

คำสำคัญ:

Inorganic element, Neutron activation analysis, Paddy soil, Rice

บทคัดย่อ

Increased anthropogenic activity, especially in thriving industries and mining activity, has led to the accumulation of inorganic elements in the soil. This study applied neutron activation analysis for the determination of inorganic element concentrations in paddy soils and quantified the nutrient value of paddy rice cultivated on various agricultural sites throughout Thailand. The determination accuracy of the elements-U, As, Sb, W, Mn, K, La, Cr, Hf, Cs, Sc, Fe, Co, Cd and Zn was assessed using National Institute of Standards and Technology standard reference materials; the results were satisfactory, showing low relative error. High analytical precision was also observed. Cadmium was selected to check the linearity of the calibration curve against a Cd standard. For a calibration curve in the range 1-9 µg, a correlation coefficient of 0.997 was found. Trace amounts of U, As, Sb, W, Mn, K, La, Cr, Hf, Cs, Sc, Fe, Co, Zn and Cd were also found in the soil samples. However, the Co, Cd, and Zn concentrations were especially high in agricultural sites in Tak province. The elemental concentrations in rice followed the order K > Zn > Mn. The data obtained are of potential benefit for the development of trace element supplementation in food.

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เผยแพร่แล้ว

2017-06-30

How to Cite

Seeprasert, Prapamon, Patana Anurakpongsatorn, Sirinart Laoharojanaphand, และ Arporn Busamongkol. 2017. “Instrumental neutron activation analysis to determine inorganic elements in paddy soil and rice and evaluate bioconcentration factors in rice”. Agriculture and Natural Resources 51 (3). Bangkok, Thailand:154-57. https://li01.tci-thaijo.org/index.php/anres/article/view/240132.