A novel terbium composite nanoparticles: Preparation and selective fluorescence determination of chromium(VI)

Determination of Paeonol by SDS Sensitized Fluorescence Quenching Method of Cerium(III)

“…。最近的研究证明，丹皮酚对人大肠癌细 胞、肝癌细胞、结肠癌细胞等多种肿瘤细胞具有抑制 其增殖的作用 [4,5] 。此外，丹皮酚对色斑、肌肉痛、皮 SDS 增敏 Ce(III)荧光猝灭法分析中药丹皮酚 肤瘙痒、牛皮癣、带状疮疹、湿疹具有较好的治疗和 保健效果 [6] 。因此，需要建立方便、快速、灵敏、选 择性高的分析丹皮酚的方法。 丹皮酚测定方法主要包括：紫外分光光度法 [7] 、 敏化荧光法 [8] 、液相色谱法 [9] 、毛细管电泳法 [10] 、气/ 液色谱-质谱联用 [11,12] 。荧光猝灭量子点方法测定药 膏中的丹皮酚已有应用 [13] ，但使用稀土离子荧光探针 测定丹皮酚的研究还未见报道。 稀土离子因独特的电子跃迁特性及丰富能级已 日益受到人们的关注 [14] 。稀土荧光探针因其具有发射 光谱窄而对称，光化学稳定，荧光寿命长，荧光量子 产率高的特点 [15] 。目前已有文献报道了稀土荧光探针 与药物作用，包括稀土离子荧光探针，如 Tb(III)、 Eu(III)、Y(III)等 [16,17] ；稀土络合物荧光探针，如 Eu-吡啶二酸络合物 [18] ；稀土纳米粒子荧光探针，如 Tb/ 乙酰丙酮/聚丙烯酰胺 [19] 。 利用表面活性剂具有增敏、增溶、增稳、增速、 增加对比度等特点。本课题组将表面活性剂用于光谱 分析，研究了表面活性剂对分子光谱法(紫外可见光 谱，荧光光谱)和原子光谱的增敏作用，并探讨了其增 敏机理 [20][21][22]…”

A sensitive fluorimetric method for determination of trace amounts of nitrite based on luminescence energy transfer

“…Their unique optical and chemical properties, including high quantum yields, very narrow emission peak, large Stokes shifts, high chemical stability, make them particularly advantageous for the use as fluorescence probes [30]. Various organic ligands such as b-diketiminate and acetylacetone (acac) [31,32], have been used to enhance the lanthanide fluorescent intensity [33,34]. It is well-known that sodium hexametaphosphate (SHMP) is a sequestrant.…”

A sensitive method for determination of trace amounts of chromate (III) with terbium (III) sodium hexametaphosphate chelate as fluorescent probe

“…[17] These properties make them particularly advantageous for the use as fluorescence probes. Various organic ligands such as β ‐diketiminate and acetylacetone (acac)[18,19] have been used to sensitize and enhance the lanthanide fluorescence. [20,21] To the best of our knowledge, sodium hexametaphosphate (SHMP) is used as a sequestrant.…”