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Issue:
Determination of Methyl Salicylate in Gaultheriae Radix by Fluorimetric Method
Author(s):
ZHOU Xiaoxia
,
WEI Yongju
Pages:
82
-
84
Year:
2013
Issue:
1
Journal:
Journal of Hebei Normal University(Natural Science Edition)
Keyword:
水杨酸甲酯
;
透骨香
;
荧光分析
;
Abstract:
提出了一种测定中药透骨香中水杨酸甲酯含量的荧光分析方法.本法基于水杨酸甲酯在0.02 mol/LNaOH溶液中,70℃水浴加热20 min,可以发生水解反应,生成具有荧光的水杨酸.水解产物的最大激发波长和发射波长分别为295 nm和405 nm.在o.484~6.297 μmol/L内,水杨酸甲酯水解产物的荧光强度与浓度呈线性关系.利用本法测得透骨香样品中水杨酸甲酯的含量为0.262%.
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