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流动注射-化学发光法测定决明子蒽醌类化合物
Determination of anthraquinone by flow injection chemiluminescence
【摘要】 基于在碱性条件下,蒽醌对ClO- Luminol化学发光体系的显著抑制作用,结合反向流动注射技术,提出了蒽醌的流动注射 化学发光分析新方法。蒽醌的质量浓度在0.5~100μg mL范围内与化学发光的抑制强度呈良好的线性关系。检出限为0.05μg mL,RSD=1.6%,采样频率为150次 h,回收率为105%~107.5%。
【Abstract】 A reverse flow injection chemiluminescence method for the determination of anthraquinone was described.It was found that the CL intensity from the luminol-ClO- system was reduced in the presence of anthraquinone. The CL emission was inversely correlated with the anthraquinone concentration in the range from 0.5 to 100 μg/mL, the detection limit was 0.05 μg/mL and the relative standard deviation was 1.6%. A sampling frequency was 150 h-1 and the recovery was 105%~107.5%.
【关键词】 蒽醌;
化学发光;
流动注射;
决明子;
【Key words】 Anthraquinone; Chemiluminescence; Flow injection; Cassia obtusifolia L.;
【Key words】 Anthraquinone; Chemiluminescence; Flow injection; Cassia obtusifolia L.;
- 【文献出处】 分析试验室 ,Analytical Laboratory , 编辑部邮箱 ,2004年05期
- 【分类号】O657.3
- 【被引频次】10
- 【下载频次】153