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同步荧光法同时测定苯甲酸和水杨酸的研究
Authors
张勇
张幸义
+4 more
朱亚先
李少霞
许永新
黄贤智
Publication date
25 March 1995
Publisher
Abstract
根据苯甲酸与水杨酸在酸性条件下荧光光谱出现的差异,用同步荧光法同时测定其混合物中二组份。苯甲酸及水杨酸的检测限分别为0.24μg/mL和0.25μg/mL,相对标准偏差分别为1.3%和1.2%。方法用于商品杀菌防腐剂中苯甲酸与水杨酸的同时测定,结果满意。Abstract:Basedontheevidentdifference,offluoreseencespetracharacteristicsbetweenbenzoicacidandsalicylicacidin1.0mol/LaqueousH2SO4solution,anewmethodhasbeenestablishedforsimultaneousdeterminationofbenzoicacidandsalicylicacidinmixturesbysynchronousflourimetry.Thedetectionlimitsofbenzoicacidandsalicylicacidare:0.24μg/mLand0.25μg/mL,respectively.Therelativestandarddevi
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Last time updated on 16/06/2016