| Monitoring the Aggregation of Dansyl Chloride in Acetone through Fluorescence Measurements |
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| 作者姓名： | FANG，Yu YIN，Yi－Qing |
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| 作者单位： | SchoolofChemistryandMaterialsScience,ShaanxiNormalUniversity,Xi′an,Shaanxi710062,China |
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| 基金项目： | theNationalNaturalScienceFoundationofChina (Nos.2 99730 2 4and 2 0 1730 35 ) ,theUniversityKeyTeacher’sFoundingProgramoftheMinistryofEducationofChina (No .30 0 6 )andtheNaturalScienceFoundationofShaanxiProvince (No .99H13) |
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| 摘 要： | The aggregation of dansyl chloride (DNS-Cl) in acetone has been studied in detail by steady-state fluorescence techniques.It has been demonstrated that DNS-Cl is stable in acetone during purification and aggregation study processes.The aggregates are not solvolyzed in acetone,and do not take part n any chemical reactions either.It has been found that DNS-Cl tends to aggregate even when its concentration is much lower than its solubility in acetone.The aggregation is reversible,and both the aggregation and the deaggregation are very slow processes.Introduction of SDS has a positive effect upon the formation and stabilization of the aggregates.
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| 关 键 词： | 荧光测定 丙酮 丹磺酰氯 聚集体 |
Monitoring the Aggregation of Dansyl Chloride in Acetone through Fluorescence Measurements |
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| FANG,Yu YIN,Yi-Qing HU,Dao-Dao GAO,Gai-LingSchool of Chemistry and Materials Science,Shaanxi Normal University,Xi'an,Shaanxi ,China.Monitoring the Aggregation of Dansyl Chloride in Acetone through Fluorescence Measurements[J].Chinese Journal of Chemistry,2002,20(4):317-321. |
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| Authors: | FANG Yu YIN Yi-Qing HU Dao-Dao GAO Gai-LingSchool of Chemistry and Materials Science Shaanxi Normal University Xi'an Shaanxi China |
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| Institution: | FANG,Yu YIN,Yi-Qing HU,Dao-Dao GAO,Gai-LingSchool of Chemistry and Materials Science,Shaanxi Normal University,Xi'an,Shaanxi 710062,China |
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| Abstract: | The aggregation of dansyl chloride (DNS-Cl) in acetone has been studied in detail by steady-state fluorescence techniques. It has been demonstrated that DNS-Cl is stable in acetone during purification and aggregation study processes. The aggregates are not solvolyzed in acetone, and do not take part in any chemical reactions either. It has been found that DNS-Cl tends to aggregate even when its concentration is much lower than its solubility in acetone. The aggregation is reversible, and both the aggregation and the deaggregation are very slow processes. Introduction of SDS has a positive effect upon the formation and stabilization of the aggregates. |
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| Keywords: | dansyl chloride acetone aggregation fluorescence techniques |
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