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    Assessment of Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Cd, and Pb Concentrations in Gluten-free Foods From Saudi Arabia by Inductively Coupled Plasma Mass Spectrometry
    (Atomic Spectroscopy Press Ltd, 2015) Mehder, A. O.; Yilmaz, E.; Sungur, A.; Soylak, M.; Alothman, Z. A.
    The levels of arsenic, cadmium, chromium, cobalt, copper, iron, lead, manganese, nickel, and zinc in some gluten-free food samples used for celiac disease patients have been determined after microwave digestion by inductively coupled plasma mass spectrometry (ICP-MS). The concentrations were found in the range of 0.09-0.66 (As), 2.9-6.6 (Cd), 4.7-100.3 (Cr), 866-2009 (Co), 0.043-0.26 (Cu), 3.2-17.4 (Fe), 1.4-10.5 (Pb), 12.9-41.3 (Mn), 0.35-0.46 (Ni) and 0.021-0.268 (Zn) mg kg(-1). The detection limits for As, Cd, Cr, Co, Cu, Fe, Pb, Mn, Ni, and Zn were 0.33, 0.009, 0.26, 0.041, 0.17, 1.36, 0.025, 0.061, 0.042, and 0.29 mg kg(-1), respectively. The accuracy of the method was confirmed by analysis of the standard reference material SRM 1568a Rice Flour. The results were compared with related works published for gluten-free foods used around the world and it was found that the Mn and Fe levels obtained in this study were at higher levels. The highest Ni, Co, Fe, and Cr levels were in Rice Flicks. The lowest Mn, Co, Zn, As, and Cd levels were in the Rice Thins samples. A hierarchical cluster analysis of the results was performed to identify similarities between the food samples based on element component.
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    Öğe
    Assessment of Cr, Mn, Fe, Co, Ni, Cu, Zn, As, Cd, and Pb concentrations in gluten-free foods from Saudi Arabia by inductively coupled plasma mass spectrometry
    (Perkin - Elmer Corp., 2015) Mehder, A.O.; Yilmaz, E.; Sungur, A.; Soylak, M.; Alothman, Z.A.
    The levels of arsenic, cadmium, chromium, cobalt, copper, iron, lead, manganese, nickel, and zinc in some glutenfree food samples used for celiac disease patients have been determined after microwave digestion by inductively coupled plasma mass spectrometry (ICP-MS). The concentrations were found in the range of 0.09-0.66 (As), 2.9-6.6 (Cd), 4.7-100.3 (Cr), 866-2009 (Co), 0.043-0.26 (Cu), 3.2-17.4 (Fe), 1.4-10.5 (Pb), 12.9-41.3 (Mn), 0.35-0.46 (Ni) and 0.021-0.268 (Zn) mg kg1. The detection limits for As, Cd, Cr, Co, Cu, Fe, Pb, Mn, Ni, and Zn were 0.33, 0.009, 0.26, 0.041, 0.17, 1.36, 0.025, 0.061, 0.042, and 0.29 mg kg-1, respectively. The accuracy of the method was confirmed by analysis of the standard reference material SRM 1568a Rice Flour. The results were compared with related works published for gluten-free foods used around the world and it was found that the Mn and Fe levels obtained in this study were at higher levels. The highest Ni, Co, Fe, and Cr levels were in Rice Flicks. The lowest Mn, Co, Zn, As, and Cd levels were in the Rice Thins samples. A hierarchical cluster analysis of the results was performed to identify similarities between the food samples based on element component. Symptoms of celiac disease are diarrhea, bloating, abdominal pain, constipation, muscular disturbances, headaches, migraines, and bone or joint pain (18). Inductively coupled plasma mass spectrometry (ICP-MS) is a powerful instrumental detection technique for trace elements in environmental samples including food samples. This technique is preferred to atomic absorption spectrometry (AAS) and inductively coupled plasma atomic emission spectrometry (ICP-AES) due to its lower detection limits for analyte elements in comparison to AAS and ICP-AES (14, 19, 20). According to our literature survey, no study has been reported on the metal content of gluten-free food samples from Saudi Arabia after microwave digestion. This pilot study is the first on this subject. In the present work, the trace element concentrations of some gluten-free foods from Saudi Arabia were determined by ICP-MS after microwave digestion. The accuracy of the method was confirmed by analysis of the standard reference material SRM 1568a Rice Flour. The hierarchical cluster analysis of the results was also investigated to identify similarities between food samples based on element components.
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    Öğe
    Assessment of relationship between geochemical fractions of barium in soil of cherry orchards and plant barium uptake and determination by inductively coupled plasma optical emission spectrometry
    (Atomic Spectroscopy Press Limited, 2019) Sungur, A.; Gur, E.; Everest, T.; Soylak, M.; Ozcan, H.
    This study was conducted to investigate the relationship of geochemical fractions of Ba in soils of cherry orchards and in plant Ba uptake. The levels of Ba in the soil samples were determined after sequential extraction procedure and analysis by inductively coupled plasma optical emission spectrometry (ICP-OES). At the same time, the levels of Ba in cherry leaf samples were determined after a wet digestion procedure by ICP-OES. Soil total Ba concentrations (mean 108.9 µg g-1) were found within normal ranges specified for agricultural soils. The Ba concentration in the cherry leaf samples was found in the range of 9.1 µg g-1 to 20.6 µg g-1. Sequential extraction revealed that Ba existed in highly mobile phases (42%), which are attributed to anthropogenic sources as well as to decomposition of soil parent material. The experimental data were subjected to hierarchical cluster analysis to assess the relationship between the Ba concentration of each fraction and the leaf Ba contents. A significant correlation was observed between the leaf Ba concentrations and the acid soluble fraction. © 2019, Perkin - Elmer Corp. All rights reserved.
  • [ X ]
    Öğe
    Assessment of Relationship Between Geochemical Fractions of Barium in Soil of Cherry Orchards and Plant Barium Uptake and Determination by Inductively Coupled Plasma Optical Emission Spectrometry
    (Atomic Spectroscopy Press Ltd, 2019) Sungur, A.; Gur, E.; Everest, T.; Soylak, M.; Ozcan, H.
    This study was conducted to investigate the relationship of geochemical fractions of Ba in soils of cherry orchards and in plant Ba uptake. The levels of Ba in the soil samples were determined after sequential extraction procedure and analysis by inductively coupled plasma optical emission spectrometry (ICP-OES). At the same time, the levels of Ba in cherry leaf samples were determined after a wet digestion procedure by ICP-OES. Soil total Ba concentrations (mean 108.9 mu g g(-1)) were found within normal ranges specified for agricultural soils. The Ba concentration in the cherry leaf samples was found in the range of 9.1 mu g g(-1) to 20.6 mu g g(-1). Sequential extraction revealed that Ba existed in highly mobile phases (42%), which are attributed to anthropogenic sources as well as to decomposition of soil parent material. The experimental data were subjected to hierarchical cluster analysis to assess the relationship between the Ba concentration of each fraction and the leaf Ba contents. A significant correlation was observed between the leaf Ba concentrations and the acid soluble fraction.