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三维荧光二阶校正法用于复杂基体样中川芎嗪和替米沙坦的快速定量分析 被引量:3
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作者 赵娟 吴海龙 +4 位作者 于丽丽 于永杰 牛景芳 王予 俞汝勤 《分析科学学报》 CAS CSCD 北大核心 2011年第3期273-278,共6页
采用三维荧光光谱法,结合化学计量学中基于交替归一加权残差(ANWE)算法的二阶校正方法,实现了人血浆样品中川芎嗪和替米沙坦的同时快速定量分析。当组分数N取4时,ANWE算法解析获得的川芎嗪和替米沙坦的平均回收率分别为99.3±3.5%和... 采用三维荧光光谱法,结合化学计量学中基于交替归一加权残差(ANWE)算法的二阶校正方法,实现了人血浆样品中川芎嗪和替米沙坦的同时快速定量分析。当组分数N取4时,ANWE算法解析获得的川芎嗪和替米沙坦的平均回收率分别为99.3±3.5%和96.8±2.0%。本文同时给出了此方法的检测限(LOD)与定量下限(LOQ),获得了满意的实验结果。此外,用上述方法对替米沙坦片中替米沙坦的含量进行了快速测定,所得结果与液相色谱方法结果进行比较,同样获得了令人满意的实验结果。本方法可以很好地解决目标分析物之间,以及目标分析物与基体内源物质之间因光谱严重重叠所引起的难分辨问题,用"数学分离"代替或简化"物理分离"及"化学分离",实验不需对样品进行复杂预处理,简便高效,可为临床医药分析提供新思路。 展开更多
关键词 川芎嗪 替米沙坦 三维荧光光谱 二阶校正法 交替归一加权残差算法 血浆样 替米沙坦片
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Second-order calibration applied to quantification of two active components of Schisandra chinensis in complex matrix
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作者 Xiao-Hua Zhang Hai-Long Wu +6 位作者 Jian-Yao Wang Yao Chen Yong-Jie Yu Chong-Chong Nie Chao Kang De-Zhu Tu Ru-Qin Yu 《Journal of Pharmaceutical Analysis》 SCIE CAS 2012年第4期241-248,共8页
The effectiveness of traditional Chinese medicine(TCM)against various diseases urges more low cost,speed and sensitive analytical methods for investigating the phamacology of TCM and providing a theoretical basis for ... The effectiveness of traditional Chinese medicine(TCM)against various diseases urges more low cost,speed and sensitive analytical methods for investigating the phamacology of TCM and providing a theoretical basis for clinical use.The potential of second-order calibration method was validated for the quantification of two effective ingredients of Schisandra chinensis in human plasma using spectrofluorimetry.The results obtained in the present study demonstrate the advantages of this strategy for multi-target determination in complex matrices.Although the spectra of the analytes are similar and a large number of interferences also exist,second-order calibration method could predict the accurate concentrations together with reasonable resolution of spectral profiles for analytes of interest owing to its‘second-order advantage’.Moreover,the method presented in this work allows one to simply experimental procedure as well as reduces the use of harmful chemical solvents. 展开更多
关键词 Traditional Chinese medicine Second-order calibration Schizandrol A Schizandrin B Self-weighted alternating normalized residue fitting(SWANRF)algorithm alternating normaliza-tion-weighted error(anwe)algorithm.
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