Kinetic determination of trace levels of selenium(IV) and total selenium by Nile Blue A/hydrogen peroxide method

1998 ◽  
Vol 128 (1-2) ◽  
pp. 43-48 ◽  
Author(s):  
Gordana A. Milovanović ◽  
Radivoj B. Petronijević ◽  
Mira M. Čakar
Keyword(s):  
Hydrogen Peroxide ◽  
Nile Blue ◽  
Kinetic Determination ◽  
Nile Blue A ◽  
Total Selenium ◽  
Peroxide Method

scholarly journals Determination of lisinopril in pharmaceuticals by a kinetic spectrophotometric method

2012 ◽  
Vol 77 (10) ◽  
pp. 1437-1442 ◽  
Author(s):  
Mira Cakar ◽  
Gordana Popovic
Keyword(s):  
Hydrogen Peroxide ◽  
Spectrophotometric Method ◽  
Nile Blue ◽  
Borate Buffer ◽  
Nile Blue A ◽  
Tangent Method ◽  
Kinetic Spectrophotometric ◽  
Detection And Quantification

A kinetic spectrophotometric method for determination of lisinopril in pharmaceuticals has been developed. The method is based on activator action of lisinopril on Cu(II) ions catalysing the oxidation of nile blue A with hydrogen peroxide in borate buffer (pH 9.3). A decrease of the absorbance was recorded at 635 nm for 5 min at 25?C. The linearity was established applying the tangent method within the concentration range of lisinopril from 0.8-6.4 ?g mL-1, the detection and quantification limits being 0.158 ?g mL-1 and 0.480 ?g mL-1, respectively. The method has been successfully applied in three brands of tablets containing lisinopril alone or in combination with hydrochlorothiazide.

scholarly journals A modification of the hydrogen peroxide method of determination of total phosphorus in natural waters

1982 ◽  
Vol 16 (6) ◽  
pp. 1061-1064 ◽  
Author(s):  
F. Cabrera ◽  
E. Diaz ◽  
C.G. Toca ◽  
P. De Arambarri
Keyword(s):  
Hydrogen Peroxide ◽  
Total Phosphorus ◽  
Natural Waters ◽  
Method Of Determination ◽  
Peroxide Method

Electrocatalytic Activities of Graphene/Nile Blue Nanocomposite Toward Determination of Hydrogen Peroxide and Nitrite Ion

2016 ◽  
Vol 28 (9) ◽  
pp. 1957-1969 ◽  
Author(s):  
Reza Karimi Shervedani ◽  
Elham Ansarifar ◽  
Marzieh Samiei Foroushani
Keyword(s):  
Hydrogen Peroxide ◽  
Nile Blue ◽  
Nitrite Ion

Kinetic Determination of Drug Particles Concentration via Enzyme-Catalyzed Decomposition of Hydrogen Peroxide

2011 ◽  
Vol 29 (6) ◽  
pp. 493-502
Author(s):  
F. Pogacean ◽  
I. Baldea ◽  
L. Olenic ◽  
S. Pruneanu ◽  
A. S. Biris
Keyword(s):  
Hydrogen Peroxide ◽  
Kinetic Determination

scholarly journals Kinetic determination of rutin

2001 ◽  
Vol 66 (3) ◽  
pp. 205-211
Author(s):  
S.S. Mitic ◽  
J.I. Vucetic ◽  
S.M. Miletic ◽  
D.A. Kostic
Keyword(s):  
Hydrogen Peroxide ◽  
Detection Limit ◽  
Relative Error ◽  
Reaction Rate ◽  
Kinetic Equations ◽  
Inhibitory Effect ◽  
Kinetic Determination ◽  
Hydrogen Peroxide Detection ◽  
Concentration Interval

Akinetic method is described for the determination of rutin based on its inhibitory effect on the Fe(II)-AA catalysis of the oxidation of C6H5COONa with hydrogen peroxide. Detection limit of this method is 0.16 ngcm-3. The relative error ranges between 0.9 to 9.8%for the concentration interval 0.82 ngcm-3 to 8.2 ngcm-3. Kinetic equations are proposed for the investigated process. The effects of certain foreign ions upon the reaction rate were determined for the assessment of the selectivity of the method.

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