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无任何保护性介质存在下，β－溴代萘（β－ＢｒＮ）水溶液仅以Ｎａ２ＳＯ３作化学除氧剂，经仪器光源适当照射，即能很快产生强而稳定的室温磷光（ＲＴＰ）信号．不同种类和用量的有机溶剂存在时，ＲＴＰ强度和获得稳定ＲＴＰ信号所需光诱导的时间显著不同．含２．５％乙腈的β－ＢｒＮ水溶液仅需极短的光诱导时间就能产生很强的ＲＴＰ发射，β－ＢｒＮ浓度在８．０×１０－８～１．６×１０－５ｍｏｌ／Ｌ范围内与其ＲＴＰ强度呈良好线性关系，检出限４．７×１０－８ｍｏｌ／Ｌ
In the absence of any protective media, β-Bromine (β-BrN) aqueous solution only uses Na2SO3 as a chemical oxygen scavenger. By appropriate irradiation with instrument light source, strong and stable room temperature phosphorescence (RTP) signal can be quickly generated. The RTP intensity and the light-induced time required to obtain a stable RTP signal are significantly different in the presence of different types and amounts of organic solvents. The aqueous solution of β-BrN containing 2.5% acetonitrile produced very strong RTP emission with only a very short light induction time. The concentration of β-BrN was 8.0 × 10-8 ~ 1.6 × 10-5mol / L Within the range and its RTP intensity showed a good linear relationship with a detection limit of 4.7 × 10-8mol / L