El-Ghawi U M, Al-Sadeq A A
Tajura Research Center, Tripoli, Libya.
Biol Trace Elem Res. 2006 Summer;111(1-3):31-40. doi: 10.1385/BTER:111:1:31.
Epithermal instrumental neutron activation analysis (EINAA) has been used to determine the iodine content of many individual food materials that constitute the typical Libyan diet. The selected samples include different varieties of local and imported foods such as wheat and barley products, rice, bread, legumes such as chick peas and lentil, table salt, and commonly used spices, including thyme and fenugreek. Both conventional and anticoincidence gamma-ray spectrometry techniques have been employed. Epithermal INAA in conjunction with anticoincidence counting has been found to provide the most reliable results. For quality control purposes, a number of NIST biological reference materials were analyzed. The range of daily dietary intake has been calculated as 100-180 microg of iodine per day, which is within the recommended range. Bread was identified as a significant source of iodine in the Libyan diet, as it contributed 99 microg/d.
超热仪器中子活化分析（EINAA）已被用于测定构成典型利比亚饮食的许多单一食品原料中的碘含量。所选样本包括不同品种的本地和进口食品，如小麦和大麦制品、大米、面包、鹰嘴豆和小扁豆等豆类、食盐以及常用香料，包括百里香和葫芦巴。同时采用了传统γ射线能谱法和反符合γ射线能谱法。已发现超热中子活化分析结合反符合计数可提供最可靠的结果。为进行质量控制，分析了多种美国国家标准与技术研究院（NIST）的生物参考物质。每日膳食摄入量范围经计算为每天100 - 180微克碘，在推荐范围内。面包被确定为利比亚饮食中碘的重要来源，其碘含量为99微克/天。
