...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>African Journal of Environmental Science and Technology >Evaluation of polycyclic aromatic hydrocarbons and some heavy metals in roasted food snacks in Amassoma, Niger Delta, Nigeria
【24h】

Evaluation of polycyclic aromatic hydrocarbons and some heavy metals in roasted food snacks in Amassoma, Niger Delta, Nigeria

机译：尼日利亚尼日尔三角洲Amassoma烧烤食品小吃中的多环芳烃和一些重金属的评估

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

摘要

Analysis of raw and roasted ready-to-eat foods namely; Atlantic mackerel (Scomber scombrus), suya beef and plantain (Musa paradiasca) sold and consumed in Amassoma town were screened for the presence of 15 polycyclic aromatic hydrocarbons (PAHs). Concentration of chromium, lead and cadmium were also determined after digestion with aqua regia and analysed using atomic absorption spectrophotometer. Column chromatography, packed with anhydrous Na2SO4 and silica gel was used for PAH extraction with dichloromethane as the eluting solvent. The identification and concentration of PAHs were carried out by gas chromatography GC/FID with the aid of 15 PAH standards. Appreciable amount of benzo[a]pyrene (2.41 µg/g) and benzo[b]fluoranthene (4.51 µg/g) were found present in roasted mackerel fish; while a mean of 7.23 µg/g of benzo[a]anthracene was detected in suya beef. Thirteen (13) other PAHs were present at various concentrations in the smoked fish. No PAH was detected in roasted plantain and in the raw food items. Levels of the heavy metals were found in trace amounts and were below World Health Organization limits for human consumption.
机译：分析生和烤即食食品;对在Amassoma镇出售和消费的大西洋鲭鱼（Scomber scombrus），suya牛肉和车前草（Musa paradiasca）进行了筛选，确定其中存在15种多环芳烃（PAH）。用王水消化后，还测定了铬，铅和镉的浓度，并使用原子吸收分光光度计进行了分析。使用装有无水Na2SO4和硅胶的柱色谱进行PAH萃取，以二氯甲烷为洗脱溶剂。 PAHs的鉴定和浓缩是通过气相色谱GC / FID借助15种PAH标准品进行的。在烤鲭鱼鱼中发现了相当数量的苯并[a] py（2.41 µg / g）和苯并[b]荧蒽（4.51 µg / g）。而在苏亚牛肉中平均检出7.23 µg / g苯并[a]蒽。熏鱼中还以不同浓度存在十三（13）种其他PAH。在烤车前草和未加工食品中未检测到PAH。发现的痕量重金属含量低于世界卫生组织的人类消费限量。

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