|
|||||
|
|
| 顺序注射尿碘测定仪的研制及应用 | |
| 引用本文： | 刘颖,张榕,布伟静,唐洁冰,陈珊,刘立侠.顺序注射尿碘测定仪的研制及应用[J].分析化学,2009,37(11). |
| 作者姓名： | 刘颖 张榕 布伟静 唐洁冰 陈珊 刘立侠 |
| 作者单位： | 1. 东北师范大学,长春,130024;哈尔滨医科大学中国地方病中心,哈尔滨,150081 2. 齐齐哈尔医学院,齐齐哈尔,161006 3. 哈尔滨医科大学中国地方病中心,哈尔滨,150081 4. 东北师范大学,长春,130024 |
| 摘 要： | 研制了一种顺序注射尿碘分析仪,将顺序注射技术与催化动力学分析相结合,利用碘对砷-铈氧化还原反应的催化作用,建立了顺序注射尿碘测定方法.采用流速和推吸可控的程控注射器及16孔程控选择阀,实现了顺序注射进样和停留稳态测量.恒温流动池使碘催化的砷-铈反应可以在恒温状态下进行.应用自行设计的微机接口电路和尿碘测定的应用软件,控制反应温度(32.0±0.1)℃,流动配送时间45 s,停流稳定时间60 s,停流检测时间20 s,进样量400 μL.本方法线性范围为15～600 μg/L,检出限为5.01 μg/L(n=11),回收率为94.1%～105.1%.对国家标准参考物质(GBW09109和 GBW09110)的测定结果在给定的标准值范围内.应用本方法检测尿碘并与国家卫生行业标准方法(WS/ T107-2006)进行比较,测定结果无显著性差异(P>0.05). |
| 关 键 词： | 尿碘 顺序注射 催化动力学 分光光度 |
Sequential Injection Instrument for Determination of Urine Iodine |
|
| LIU Ying,ZHANG Rong,BU Wei-Jing,TANG Jie-Bing,CHEN Shan,LIU Li-Xia.Sequential Injection Instrument for Determination of Urine Iodine[J].Chinese Journal of Analytical Chemistry,2009,37(11). | |
| Authors: | LIU Ying ZHANG Rong BU Wei-Jing TANG Jie-Bing CHEN Shan LIU Li-Xia |
| Institution: | LIU Ying1,2,ZHANG Rong3,BU Wei-Jing3,TANG Jie-Bing2,CHEN Shan1,LIU Li-Xia 1 1 ( Northeast Normal University,Changchun 130024) 2 ( China Endemic Disease Control Centre,Harbin Medical University,Harbin 150081) 3 ( Qiqihaer Medical University,Qiqihaer 161006) |
| Abstract: | An iodine analysis instrument with sequential injection of urine samples was developed. A method for measurement of urine iodine was also developed by combining sequential injection and catalysis kinetics,and making use of catalysis facilitation of the iodine in the redox reaction of As3 + and Ce4 +. The sequential injection and stopped-flow stabilization determination were made possible by the program-controlled injector with controlled flow rate and the 16-hole program-controlled selection valves. The ars... |
| Keywords: | Urine iodine sequential injection catalysis kinetics spectrophotometry |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |