| 桑色素荧光法测定铍的研究 |
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| 中文关键词 铍 桑色素 荧光光度法 |
| 英文关键词 beryllium morin flluorescence |
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| 中文摘要 |
| 报告铍与桑色素试剂的荧光光谱特性,给出其激发光谱,发射光谱和同步荧光光谱图,Δλ选用100nm的同步荧光光谱效果最佳。当Be2+的浓度为0.005μg/ml时仍可获得良好的同步荧光光谱,对大气样品和水中痕量铍的测定结果与常规方法的结果有可比性。 |
| 英文摘要 |
| The fluorometric spectra of beryllium-morin complex were characterized and the graphs of excitation spectrum, emission spectrum and synchronous fluorescence spectrum were given. The synchronous spectrum of beryllium-morin in an alkaline solution had an optimum specific Δλ of 100um. A synchronous scanning spectrofluorometry was used to determine beryllium at a level of submicrogram,with a detectable limit of 5 ng/ml Be2+. The results obtained with this method were comparable with those obtained with an atomic absorption spectrophotometric method for air samples and water samples. |
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