详细信息
硫脲新试剂探针测定唾液中蛋白质含量研究
Determination of Proteins in Saliva With Pentyl-Thiourea as a Fluorescence Probe
文献类型:期刊文献
中文题名:硫脲新试剂探针测定唾液中蛋白质含量研究
英文题名:Determination of Proteins in Saliva With Pentyl-Thiourea as a Fluorescence Probe
作者:刘清玲[1,2];崔凤灵[1]
第一作者:刘清玲
机构:[1]河南师范大学化学与环境科学学院;[2]新乡学院化学与化工学院
第一机构:河南师范大学化学与环境科学学院,河南新乡453007
年份:2010
卷号:38
期号:1
起止页码:124-126
中文期刊名:河南师范大学学报:自然科学版
收录:CSTPCD;;北大核心:【北大核心2008】;CSCD:【CSCD_E2011_2012】;
基金:国家自然科学基金(30970696);河南省高校科技创新团队支持计划资助(2008IRTSTHN002);高等学校博士学科点专项科研基金(20060476001)
语种:中文
中文关键词:N-戊基-N'-(对氨基苯磺酸钠)硫脲;人血清白蛋白(HSA);唾液;同步荧光光谱
外文关键词:pentyl-thiourea human serum albumin saliva synchronous fluorescence spectra
摘要:基于N-戊基-N′-(对氨基苯磺酸钠)硫脲(APT)与血清白蛋白(HSA)相互作用引起血清白蛋白的同步荧光发生特异性变化,且体系的同步荧光强度和溶液中血清白蛋白的浓度呈良好的线性关系,建立了以APT为分子探针,运用固定波长同步荧光光谱分析测定生物样品中蛋白质含量的新方法.在最佳实验条件下,体系的同步荧光强度与人血清白蛋白在2.0~479.0mg·L-1范围内呈良好的线性关系,方法的检测限可达1.6mg·L-1.本实验对人唾液中的蛋白质进行了测定,回收率在96.4%~98.1%之间.对11份空白溶液进行平行测定,相对标准差为0.86%.实验结果表明:该方法具有简单快速、灵敏度较高、线性范围宽、精密度高、选择性和回收率较好等优点.
Pentyl-thiourea(APT) can interact with serum albumin,resulting in the specific changes of the endogenous fluorescence of serum albumin. Synchronous fluorescence intensity of this system has a good linear relationship with the concentration of serum albumin in solution. A new method for determining the protein in serum samples is established according to the principium described above. Under the optimum experimental conditions,human serum albumin has a good linear relationship in the range of 2.0-479.0 mg·L-1,and the detection limit is 1.6 mg·L-1. The method is simple and rapid. Eleven blank solutions for conducting the parallel experimental study obtained a relative standard deviation of 0.86% and the recovery is 96.4%-98.1%. The results show that pentyl-thiourea as a molecular probe used in synchronous fluorescence spectroscopy method could result in a simple and rapid method with high sensitivity,featuring wide linear range of determination,stability and good selectivity.
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