α-萘氧乙酸和β-萘氧乙酸无保护流体室温磷光性质和有机溶剂的影响比较  

Comparison of Non-protected Fluid Room Temperature Phosphorescence Properties of α-Naphthyloxyacetic Acid and β-Naphthyloxyacetic Acid

作　　者：陈小康[1] 牟兰[2] 李隆弟[3] 

机构地区：[1]韶关大学化学系,广东韶关512005 [2]贵州大学化学系,贵州贵阳550025 [3]清华大学化学系,北京100084

出　　处：《福州大学学报（自然科学版）》1999年第S1期153-155,共3页Journal of Fuzhou University(Natural Science Edition)

基　　金：国家自然科学基金!(29775013)

摘　　要：对比研究了α－ 萘氧乙酸（α－ ＮＯＡ） 和β－ 萘氧乙酸（β－ ＮＯＡ） 的流体室温磷光性质及有机溶剂的影响． 以ＫＩ或ＴｌＮＯ３ 作重原子微扰剂， Ｎａ２ＳＯ３ 作除氧剂， 两者均可在无保护性介质存在下发射强而稳定的室温磷光信号， 可用于分析测定． 不同有机溶剂的引入， 不仅对体系ＲＴＰ强度和ＲＴＰ强度稳定所需光诱导时间的影响不同， 且对重原子微扰剂的选择亦有一定影响． 相同条件下β－ ＮＯＡ的磷光强度比α－ ＮＯＡ 的低， 但检测限相当， 且受有机溶剂的影响比较小．A comparative study of properties of non-protected room temperature phosphorescence(NP-RTP) and effects of organic solvents for α-naphthyloxyacetic(α-NOA) and β-naphthyloxyacetic acid(β-NOA) has been carried out. Both α-NOA and β-NOA aqueous solutions can emit strong and stable RTP signal in the absence of a protecting medium by addition of KI or TlNO 3 as heavy atom pertuber(HAP) and Na 2 SO 3 as deoxygenator. A good linearity between the RTP intensity and the concentration of α-NOA or β-NOA was obtained with a detection of 10 nmol/L or 12 nmol/L respectively. The kind and amount of organic solvent added to the luminescent system not only affect the RTP intensity and the pre-irradiation time required to attain a stable RTP signal,but also the selection of HAP. Under the same conditions,the RTP intensity of the system using TlNO 3 as HAP is much stronger than that of the system using KI as HAP,but the detection limits of both systems for analytical determination are comparable. The RTP intensity of β-NOA is lower than that of α-NOA,but the influence of organic solvent on its RTP emission is also less.

关 键 词：α-萘氧乙酸 β-萘氧乙酸 无保护流体室温磷光 有机溶剂 重原子微扰剂 

分 类 号：O656.31[理学—分析化学]