[总膳食研究中氟化物的测定方法]
[The method for the determination of fluoride in the total diet study].
作者信息
Li X, Zhu L, Zhou X, Gao J
机构信息
Institute of Nutrition and Food Hygiene, Chinese Academy of Preventive Medicine, Beijing, China.
出版信息
Wei Sheng Yan Jiu. 1998 Jan;27(1):66-8.
This paper reports a microdiffusion method using fluoride-ion selective electrode for determination of fluoride contents in dietary samples. The method was suitable for the determination of fluoride in different dietary samples. It was a simple and fast method, and could be applied in large amount of sample analysis. The minimum detectable limit of this method was 1.0 microgram fluoride in 1.0 g dry dietary sample. The range of fluoride recovery and RSD in this dietary samples were 85.0%-107.0% and 4.5%-9.5% respectively. The fluoride content determined in the oyster tissue of NBS 1566 SRM was 87.9%-104.6% of certified SRM, and RSD was 6.5%. The RSD of fluoride determination in alcohol drinks was 3.1%.
本文报道了一种使用氟离子选择性电极的微扩散法，用于测定膳食样品中的氟含量。该方法适用于不同膳食样品中氟的测定。它是一种简单快速的方法，可应用于大量样品分析。该方法的最低检测限为每1.0克干燥膳食样品中含1.0微克氟。该膳食样品中氟的回收率范围和相对标准偏差分别为85.0% - 107.0%和4.5% - 9.5%。在NBS 1566标准参考物质的牡蛎组织中测定的氟含量为标准参考物质认证值的87.9% - 104.6%，相对标准偏差为6.5%。酒精饮料中氟测定的相对标准偏差为3.1%。
Zotero 插件