| 荧光动力学法测定唾液中痕量硫氰根 |
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| 引用本文： | 孔继川,樊静,冯素玲.荧光动力学法测定唾液中痕量硫氰根[J].分析测试学报,2006,25(1):109-111. |
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| 作者姓名： | 孔继川 樊静 冯素玲 |
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| 作者单位： | 河南师范大学,化学与环境科学学院,河南省环境污染控制重点实验室,河南,新乡,453007;河南师范大学,化学与环境科学学院,河南省环境污染控制重点实验室,河南,新乡,453007;河南师范大学,化学与环境科学学院,河南省环境污染控制重点实验室,河南,新乡,453007 |
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| 基金项目： | 国家自然科学基金;河南省环境污染控制实验室基金 |
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| 摘 要： | 人体内的SCN-主要分布于人体体液及代谢物中,如唾液、血浆、尿液等。其来源主要有两种途径:一是烟草中氰化物的代谢产物,人体内硫氰酸盐的含量是区别吸烟者和不吸烟者的重要标志1,2];二是某些食物的代谢产物,如卷心菜等。硫氰酸盐可作为药物用于治疗甲状腺疾病,但体液中SCN-含
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| 关 键 词： | 荧光动力学 唾液 SCN- |
| 文章编号： | 1004-4957（2006）01-0109-03 |
| 收稿时间： | 2005-01-09 |
| 修稿时间： | 2005-03-15 |
Kinetic Fluorimetric Determination of Trace Thiocyanate in Saliva |
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| KONG Ji-chuan,FAN Jing,FENG Su-ling.Kinetic Fluorimetric Determination of Trace Thiocyanate in Saliva[J].Journal of Instrumental Analysis,2006,25(1):109-111. |
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| Authors: | KONG Ji-chuan FAN Jing FENG Su-ling |
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| Institution: | School of Chemical and Environmental Sciences, Henan Key Laboratory for Environmental Pollution Control, Henan Normal University, Xinxiang 453007, China |
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| Abstract: | Based on the enhancing effect of SCN~-on the fluorimetric intensity of the reaction of potassium bromide-potassium bromate with rhodamine B,a new kinetic fluorimetric method for the determination of thiocyanate(SCN~-) in acid medium was developed.The experimental conditions including the reagent concentration,the reaction temperature and time were optimized at fixed reaction time.The linear range of the calibration curve was 0.80-72 ng/mL SCN~-with a correlation coefficient of 0.999 1.The detection limit of SCN~-was 0.33 ng/mL and the relative standard deviations for 8.0(ng/mL) and 64(ng/mL) SCN~-were 1.01% and 0.62%(n=10),respectively.The effects of common ions and organic compounds on the determination were investigated.This method has been applied to the determination of trace SCN~-in saliva of smokers and non-smokers.The possible reaction mechanism was suggested. |
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| Keywords: | SCN- |
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