Fluorometric determination of proteins using the terbium (III)-2-thenoyltrifluoroacetone-sodium dodecyl benzene sulfonate-protein system

2006 ◽  
Vol 121 (2) ◽  
pp. 535-543 ◽  
Author(s):  
Zhen Jia ◽  
Jinghe Yang ◽  
Xia Wu ◽  
Fei Wang ◽  
Changying Guo ◽  
...  
Keyword(s):  
Sodium Dodecyl ◽  
Sodium Dodecyl Benzene Sulfonate ◽  
Benzene Sulfonate ◽  
Fluorometric Determination ◽  
Protein System ◽  
Dodecyl Benzene Sulfonate

The Sensitive Fluorimetric Method for the Determination of Curcumin Using the Enhancement of Mixing Micelle

2014 ◽  
Vol 525 ◽  
pp. 89-92
Author(s):  
Wei Huang ◽  
Feng Wang ◽  
Hong Long Zhu
Keyword(s):  
Aqueous Solution ◽  
Detection Limit ◽  
Fluorescence Intensity ◽  
Sodium Dodecyl ◽  
Sodium Dodecyl Benzene Sulfonate ◽  
Benzene Sulfonate ◽  
Fluorimetric Method ◽  
Dodecyl Benzene Sulfonate

It is found that the fluorescence of curcumin is greatly enhanced by La3+ in the prescence of sodium dodecyl benzene sulfonate (SDBS). Based on this, a sensitive fluorimetric method for the determination of curcumin in aqueous solution is proposed. In the HOAc-NaOAc buffer, the fluorescence intensity of curcumin is proportional to the concentration of curcumin in the range of 0.0074-7.4μg·mL-1 and the detection limit is 3.66ng·mL-1. The actual samples are satisfactorily determined.

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