• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Health Sciences >Determination of Concentrations of Selected Heavy Metals in Cow’s Milk: Borena Zone, Ethiopia
【24h】

Determination of Concentrations of Selected Heavy Metals in Cow’s Milk: Borena Zone, Ethiopia

机译：牛奶中特定重金属的含量测定：埃塞俄比亚博雷纳区

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Fresh cow’s milk samples were collected from four dairy farms of Arero, Gololcha, Odomike, and Semero sites of Borena Zone, Ethiopia and preserved in a deep freezer (-20℃). The milk samples were digested by the optimized microwave digestion method using HNO_(3) and H_(2)O_(2). The concentrations of Cr, Mn, Co, Ni, Cu, Zn, Cd and Pb were determined by Flame Atomic Absorption Spectrometer. The elements, Co, Ni, Cd and Pb were not detected in all the milk samples under the study. The concentrations of Cr, Mn, Cu and Zn were 0.845–0.895, 0.411–0.441, 0.087–0.122 and 5.003–6.218 μg/mL, respectively in the milk samples of four sites under study. There is no significant difference in the mean concentrations of Cr and Mn between the milk samples of four farms where as that of Zn is significantly different. The concentrations of heavy metals observed were comparable with some of the reported values in literature. Consumption of beneficial metals through milk is estimated to constitute a minor portion of Recommended Dietary Allowance by FAO, WHO.
机译：新鲜的牛奶样品是从埃塞俄比亚博雷纳地区的阿雷罗，戈洛查，奥多姆克和塞梅罗四个奶牛场采集的，并保存在-20℃的深冰箱中。使用HNO_（3）和H_（2）O_（2）通过优化的微波消解方法消解牛奶样品。用火焰原子吸收光谱仪测定Cr，Mn，Co，Ni，Cu，Zn，Cd和Pb的浓度。在该研究的所有牛奶样品中均未检出元素Co，Ni，Cd和Pb。在四个研究地点的牛奶样品中，Cr，Mn，Cu和Zn的浓度分别为0.845-0.895、0.411-0.441、0.087-0.122和5.003-6.218μg/ mL。在四个农场的牛奶样品中，Cr和Mn的平均浓度没有显着差异，而Zn的显着不同。观察到的重金属浓度与文献报道的某些值相当。粮农组织，世卫组织估计，通过牛奶消费的有益金属仅占建议膳食津贴的一小部分。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号