CAJ | 학술논문

在碱性条件下，银纳米（ AgNPs）对luminol－K3 Fe（ CN）6化学发光体系具有显著的增强作用．研究发现，对苯二酚（ HQ）对luminol－K3 Fe（ CN）6－AgNPs化学发光体系具有抑制作用．结合流动注射技术提出了lumi－nol－K3Fe（CN）6－AgNPs化学发光（FI－CL）灵敏检测HQ的新方法．结果表明，HQ的线性范围为1．0×10－10～1．0×10－7 mol? L－1，检出限为3．0×10－11 mol ? L－1，对5．0×10－9 mol? L－1的HQ溶液平行测定11次的RSD为1．4％．将提出的方法分别用于河水和自来水中HQ 含量的测定，加标回收率分别为98．0％～100．8％和99．1％～100．4％．结合化学发光光谱，对银纳米增强luminol－K3Fe（CN）6化学发光体系以及HQ对该体系的抑制作用机理进行了探讨．
재감성조건하，은납미（ AgNPs）대luminol－K3 Fe（ CN）6화학발광체계구유현저적증강작용．연구발현，대분이분（ HQ）대luminol－K3 Fe（ CN）6－AgNPs화학발광체계구유억제작용．결합류동주사기술제출료lumi－nol－K3Fe（CN）6－AgNPs화학발광（FI－CL）령민검측HQ적신방법．결과표명，HQ적선성범위위1．0×10－10～1．0×10－7 mol? L－1，검출한위3．0×10－11 mol ? L－1，대5．0×10－9 mol? L－1적HQ용액평행측정11차적RSD위1．4％．장제출적방법분별용우하수화자래수중HQ 함량적측정，가표회수솔분별위98．0％～100．8％화99．1％～100．4％．결합화학발광광보，대은납미증강luminol－K3Fe（CN）6화학발광체계이급HQ대해체계적억제작용궤리진행료탐토．
Silver nanoparticles (AgNPs) exhibited better chemiluminescence (CL) catalysis activity in luminol-K3Fe(CN)6 system under alkaline condition.It was found that the CL intensity of luminol-K3Fe(CN)6-AgNPs was strongly inhibited in the presence of hydroquinone (HQ).Based on the luminol-K3Fe(CN)6-AgNPs CL system, a sensitive method to detect HQ by flow injection( FI) coupled with chemiluminescence ( CL) detection was described. Under the optimized conditions, the sensitive detection of HQ could be realized and the detection limit of HQ was cal-culated to be 3.0 ×10 -11 mol/L with a linear range of 1.0 ×10 -10 ~1.0 ×10 -7 mol/L.The relative standard devi-ation of 1.4%for 11 replicate determinations of 5.0 ×10 -9 mol/L was obtained.The method was applied to the HQ analysis of river water and tap water samples with recoveries of 98.0%~100.8%and 99.1%~100.4%, respective-ly.The possible mechanism of AgNPs enhancing effect on the weak CL emission of K3 Fe( CN) 6 system and the inhibi-tion effect of HQ on the system was discussed by fluorescence spectrophotometer.