Spectrofluorimetric determination of tannins based on their activative effect on the Cu(II) catalytic oxidation of rhodamine 6G by hydrogen peroxide

2002 ◽  
Vol 455 (2) ◽  
pp. 187-191 ◽  
Author(s):  
Suling Feng ◽  
Anna Tang ◽  
Juhui Jiang ◽  
Jing Fan
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic Oxidation ◽  
Rhodamine 6G ◽  
Spectrofluorimetric Determination

Determination of ultramicro quantities of manganese by catalytic oxidation of alizarin S by hydrogen peroxide

1970 ◽  
Vol 42 (1) ◽  
pp. 27-29 ◽  
Author(s):  
Tomislav J. Janjic ◽  
G. A. Milovanovic ◽  
M. B. Celap
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic Oxidation

Spectrofluorimetric determination of vitamin B1using horseradish peroxidase as catalyst in the presence of hydrogen peroxide

Luminescence ◽  
2009 ◽  
Vol 24 (2) ◽  
pp. 73-78 ◽  
Author(s):  
Mir Azam Khan ◽  
Seung Oh Jin ◽  
Sang Hak Lee ◽  
Hye Young Chung
Keyword(s):  
Hydrogen Peroxide ◽  
Horseradish Peroxidase ◽  
Spectrofluorimetric Determination

Determination of iron by catalytic oxidation of p-aminophenol by hydrogen peroxide

1979 ◽  
Vol 24 (1) ◽  
pp. 23-32 ◽  
Author(s):  
C. Papadopoulos ◽  
V. Vasiliadis ◽  
G.S. Vasilikiotis
Keyword(s):  
Hydrogen Peroxide ◽  
Catalytic Oxidation

scholarly journals Spectrofluorimetric Determination of Some N. Containing Medicines Using Rhodamine 6G as a Chromogenic Reagent

2021 ◽  
Vol 22 (2) ◽  
pp. 367-375
Author(s):  
Theia'a Najim Al-Sabha ◽  
Mohamed Yahya Dhamra
Keyword(s):  
Fluorescence Intensity ◽  
Rhodamine 6G ◽  
Pharmaceutical Preparations ◽  
Detection Limits ◽  
Ion Pair ◽  
Amino Groups ◽  
Spectrofluorimetric Method ◽  
Spectrofluorimetric Determination ◽  
Tertiary Amino

A sensitive spectrofluorimetric method has been developed for the analysis of some medicines containing primary, secondary, and tertiary amino groups, namely Diclofenac (DIC), Domperidone (DOM), Famotidine (FAM), and Propranolol (PRO), in their pure and medicinal forms. The method is based on the quenching of the fluorescence intensity of rhodamine 6G (R6G) through the formation of ion-pair complexes between the above medicines and the R-6G reagent, which is measured at 552 nm after excitation at 402 nm. The calibration graphs were rectilinear in the concentration ranges of 0.10- 9.00, 0.05-15.00, 0.10-14.0 and 0.05-5.00 µg mL-1 for above medicines respectively. The recovery (%) values were ranged between 99.45%- 100.97%. The detection limits ranged in the concentration of 0.243-0.754 µg/mL, and the limits of quantitation were 0.806- 2.420 µgmL-1 for all drugs. The method was successfully applied for the determination of these drugs in their pharmaceutical preparations.

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