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KMnO4-鲁米诺-香叶木素在碱性条件下有较好的发光特性,且香叶木素浓度在1.0×10-9～3.0×10-7g/mL范围内有很好的线性关系,该体系的检出限为3.7×10-10g/mL,对1.0×10-7 g/mL香叶木素进行11次平行测定,其RSD为1.9%。研究了体系的化学发光及紫外光谱特性,提出了发光反应可能的机理。方法可用于合成样品中香叶木素的测定。
KMnO4-luminol-safranin had good luminescence properties under alkaline conditions and the linearity of the content of safmannin was within the range of 1.0 × 10-9 ~ 3.0 × 10-7g / mL The detection limit of the system was 3.7 × 10-10g / mL, and 11 parallel determinations of 1.0 × 10-7g / mL diosmetin with a RSD of 1.9%. The chemiluminescence and UV spectra of the system were studied, and the possible mechanism of the luminescence reaction was proposed. The method can be used for the determination of diosmetin in synthetic samples.