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钐的β-二酮多元络合物荧光体系已有研究,但对以苯甲酰丙酮为配位体的荧光体系尚未见报道,本文对其进行了研究。试验表明,Sm~(3+)-苯甲酰丙酮(BM)-邻菲啰啉(phen)多元络合物荧光体系具有较强的荧光强度,最佳的pH范围为7.0～8.0,且以三乙醇胺-盐酸缓冲溶液为最好。在最佳条件下,Sm~(3+)浓度在2.0×10~(-6)～1.0×10~(-4)mol·L~(-1)范围内与荧光强度呈线性关系,其检出限为2.0×10~(-7)mol·L~(-1)。试验部分一试剂与仪器 RF-540型荧光分光光度计(日本岛津) 稀土离子溶液:称取纯度为99.99%的稀土氧化
The fluorescent system of samarium-β-diketone complex complexes has been studied. However, the fluorescent system using benzoyl acetone as the ligand has not been reported yet. The experimental results showed that the fluorescent system of Sm ~ (3 +) - benzoyl acetone (BM) -phen phenanthrene complex has a strong fluorescence intensity, the optimum pH range is 7.0 ~ 8.0, Triethanolamine - hydrochloric acid buffer solution is the best. Under optimum conditions, the concentration of Sm 3+ was linear with the fluorescence intensity in the range of 2.0 × 10 -6 -6.0 × 10 -4 mol·L -1, The limit is 2.0 × 10 -7 mol·L -1. Experimental part of a reagent and instrument RF-540 fluorescence spectrophotometer (Japan Shimadzu) rare earth ion solution: Weigh a purity of 99.99% rare earth oxidation