α-溴代萘的无保护性介质流体室温燐光特性  

Non-Protected Fluid Room Temperature Phosphorescence of α-Bromonaphthalene

作　　者：牟兰[1] 陈小康[2] 吴应光[3] 李隆弟[3] 

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

出　　处：《分析化学》1998年第12期1504-1507,共4页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金资助项目!(29775013)

摘　　要：含α－溴代萘（ａ－ＢｒＮｐ）的水溶液仅以Ｎａ２ＳＯ３作化学除氧剂，在仪器光源的照射下，即能很快触发α－ＢｒＮｐ强而稳定的室温光（ＲＴＰ）信号。体系ＲＴＰ性质和所需光诱导的时间对有机试剂的存在及其种类和用量极为敏感。０．５％（Ｖ／Ｖ）乙腈或丙酮的存在所需光照时间短，ＲＴＰ强度高。α－ＢｒＮｐ浓度分别在 １．０ × １０－６～ ２． ４ × １０－５ ｍｏｌ／Ｌ和 ４． ０ × １０－７～ ２． ０ × １０－５ｍｏｌ／Ｌ范围内与 ＲＴＰ强度呈良好线性关系，检出限分别为 ３，８ × １０－８ ｍｏｌ／Ｌ和 ６．５ × １０－８ ｍｏｌ／Ｌ。A strong and stable room temperature phosphorescence (RTP) signal with maximun λex/λem = 282/508 urn can be induced from a a-bromonaphthalene (α-BrNP)-Na2SO3 aqueous solution in the absence of protective medium only by irradiating the solution for a certain the with apparatus light source. The RTP intensity and/or irradiate the required to acquire stable RTP signal were very sensitive to the kind and amount of organic solvent added to the system. When a small amound (0.5%, V/V) of acetonitrile or acetone was present, the short irradiate time was needed and a strong RTP signal was triggered quickly, the RTP intensity was linear to a-BrNP concentration in the 1 .0 x 10-6 ~ 2.4 x 10-5 mol/L or in the 4.0 x 10-7 ~ 2.0 x 10-5 mol/L, the detection limit was 3 .8 x 10-8 or 6.5 x 10-8 mol/L respectively.

关 键 词：溴代萘 无保护流体 室温磷光 

分 类 号：O625.23[理学—有机化学] O644.1[理学—化学]