Spectrofluorimetric determination of carbaryl and 1-naphthol in micellar media

1991 ◽  
Vol 103 (3-4) ◽  
pp. 171-179 ◽  
Author(s):  
Juan H. Ayala ◽  
Ana M. Afonso ◽  
Venerando Gonz�lez
Keyword(s):  
Micellar Media ◽  
Spectrofluorimetric Determination

Fluorescence Enhancement of Carbendazim in the Presence of Cyclodextrins and Micellar Media: A Reappraisal

2005 ◽  
Vol 59 (7) ◽  
pp. 873-880 ◽  
Author(s):  
Rubén M. Maggio ◽  
Gisela N. Piccirilli ◽  
Graciela M. Escandar
Keyword(s):  
Sodium Dodecyl ◽  
Fluorescence Emission ◽  
Hexadecyltrimethylammonium Bromide ◽  
Micellar Media ◽  
Experimental Conditions ◽  
Decyltrimethylammonium Bromide ◽  
Spectrofluorimetric Determination ◽  
Organized Media ◽  
Organized Assemblies

This study focuses on the spectrofluorimetric behavior of the pesticide carbendazim in the presence of selected organized assemblies and also on their potential analytical applications. The relatively weak fluorescence emission band of carbendazim is significantly enhanced by micellar media formed by sodium dodecyl sulfate, hexadecyltrimethylammonium bromide, hexadecyltrimethylammonium chloride, and decyltrimethylammonium bromide. The influence of the surfactant structures, concentrations, and working experimental conditions on the fluorescence spectra of carbendazim was thoroughly evaluated and discussed. Although the interaction of carbendazim with different cyclodextrins is rather weak, it was corroborated that the fluorescence intensity of this compound in the presence of (2-hydroxy)propyl β-cyclodextrin is increased by a factor of two. Among the studied organized media, the cationic surfactant hexadecyltrimethylammonium bromide produced the largest signals for the compound of interest. Consequently, the optimal working conditions for the spectrofluorimetric determination of carbendazim in the presence of the latter detergent were analyzed, concluding that previous literature reports should be reconsidered.

Spectrofluorimetric determination of sulphonamides in pharmaceutical compounds and foods

1992 ◽  
Vol 10 (10-12) ◽  
pp. 805-808 ◽  
Author(s):  
M. Sanchez Pena ◽  
F. Salinas ◽  
M.C. Mahedero ◽  
J.J. Aaron
Keyword(s):  
Pharmaceutical Compounds ◽  
Spectrofluorimetric Determination

Micellar‐Enhanced Spectrofluorimetric Determination of Trazodone Hydrochloride in Human Urine and Serum

2007 ◽  
Vol 40 (1) ◽  
pp. 151-162 ◽  
Author(s):  
Gong‐Jun Yang ◽  
Ping Liu ◽  
Xi‐Long Qu ◽  
Ming‐Shen ◽  
Chen‐Ying Wang ◽  
...  
Keyword(s):  
Human Urine ◽  
Spectrofluorimetric Determination ◽  
Human Urine And Serum ◽  
Urine And Serum ◽  
Trazodone Hydrochloride
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