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DOI | 10.2116/bunsekikagaku.57.747 |
Determination of iodide ion in iodine-enriched egg by solid-phase extraction/reversed-phase high-performance liquid chromatography | |
Miyashita, Masahiro1; Seyama, Yoshiyuki1; Yokoyama, Jiro2 | |
通讯作者 | Miyashita, Masahiro |
来源期刊 | BUNSEKI KAGAKU
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ISSN | 0525-1931 |
出版年 | 2008 |
卷号 | 57期号:9页码:747-754 |
英文摘要 | We describe a simple and sensitive method for the determination of iodie (I-) in iodine-enriched eggs (IEs) by high-performance liquid chromatography (HPLC). I- in a 0.05 g portion of egg yolk and 0.5 g of egg white of IEs were extracted by a solid-phase extraction (SPE) procedure with a cation-exchange and anion-exchange SPE cartridges (Oasis MCX and Oasis WAX). The I- extracts were evaporated to dryness under a vacuum, and the residues were reconstituted in an HPLC mobile phase to prepare 1 mL of analytical sample solutions. A 10 mu L aliquot of each sample solution was analyzed by ion-pair reversed-phase HPLC with a UV detector at 225 nm. The method gives good sample clean-up. The relative standard deviation for the determination of I-, n = 4, in IE yolk and IE white were 0.8 and 5.5%, respectively. The recoveries of 50 mu g of I- spiked per g of IE yolk and 2.5 mu g of I- spiked per g of IE white were 92.4 and 96.8%, respectively. The detection limits for I-, based on S/N= 3, were 0.76 mu g per g of IE yolk and 0.08 mu g per g of IE white. We applied successfully the method for the determination of I- in commercial IEs. |
英文关键词 | iodine-enriched egg iodide ion solid-phase extraction weak anion-exchange solid-phase cartridge reversed-phase high-performance liquid chromatography |
类型 | Article |
语种 | Japanese |
国家 | Japan |
收录类别 | SCI-E |
WOS记录号 | WOS:000259594300005 |
WOS类目 | Chemistry, Analytical |
WOS研究方向 | Chemistry |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/156759 |
作者单位 | 1.Hoshi Univ, Dept Clin Chem, Shinagawa Ku, Tokyo 1428501, Japan; 2.Nosan Corp, Nishi Ku, Yokohama, Kanagawa 2208146, Japan |
推荐引用方式 GB/T 7714 | Miyashita, Masahiro,Seyama, Yoshiyuki,Yokoyama, Jiro. Determination of iodide ion in iodine-enriched egg by solid-phase extraction/reversed-phase high-performance liquid chromatography[J],2008,57(9):747-754. |
APA | Miyashita, Masahiro,Seyama, Yoshiyuki,&Yokoyama, Jiro.(2008).Determination of iodide ion in iodine-enriched egg by solid-phase extraction/reversed-phase high-performance liquid chromatography.BUNSEKI KAGAKU,57(9),747-754. |
MLA | Miyashita, Masahiro,et al."Determination of iodide ion in iodine-enriched egg by solid-phase extraction/reversed-phase high-performance liquid chromatography".BUNSEKI KAGAKU 57.9(2008):747-754. |
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