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本文报道了AOT-C_6H_(12)-H_2O反相胶束介质中α-萘乙酸(α-NAA)敏化双乙酰(BIAC)的室温燐光.详细讨论了琥珀酸二(2-乙基己基)酯磺酸钠(AOT)浓度和水泡大小(W值)对敏化燐光的影响.吸收、发光性质和微粘度性质的实验表明AOT浓度对敏化燐光强度的影响由敏化燐光寿命、能量转移效率和Poisson分布决定;一定范围内,随着水浓度增大,由于粘度下降和内腔半径增大作用的相互抵销,水泡大小仅有微弱影响.当W([H_2O]/[AOT])大于20后,内腔半径增大起主要作用,敏化燐光强度快速下降.与普通SDS胶束相比,燐光强度约增强13倍,检出限约下降一个数量级.建立了灵敏的测定α-萘乙酸和双乙酰的敏化室温燐光法,检出限分别达2.0×10~(-8)mol·dm~(-3)(α-NAA)和8.5×10~(-9)mol·dm~(-3)(BIAC).
In this paper, we report the room-temperature calendering of α-NAA-sensitized diacetyl (BIAC) in AOT-C_6H_ (12) -H_2O reversed-phase micelles.We discuss in detail the room temperature catalase of bis (2-ethylhexyl) The effects of AOT concentration and vesicle size (W value) on sensitized calender light.The experimental results of absorption, luminescent properties and microviscosity properties show that the effect of AOT concentration on sensitized calender light intensity is affected by the sensitized calendaring lifetime, energy transfer Efficiency and Poisson distribution. With the increase of water concentration, the bubble size has only a weak influence due to the decrease of viscosity and the increase of lumen radius. When W ([H 2 O] / [AOT]) When the inner diameter is larger than 20, the inner cavity radius plays a major role, and the light intensity of sensitizing calamine rapidly decreases. Compared with the ordinary SDS micelles, the calendering intensity is about 13 times higher and the detection limit decreases by about one order of magnitude.A sensitive method for the determination of α- The detection limits were 2.0 × 10 ~ (-8) mol · dm -3 (α-NAA) and 8.5 × 10 ~ (-9) mol · dm ~ (-3) (BIAC).