A kinetic determination of ultramicro quantities of manganese(II), molybdenum(VI) and tungsten(VI) on the basis of their catalytic action on the oxidation of Azorubin S by hydrogen peroxide

1978 ◽  
Vol 69 (3-4) ◽  
pp. 297-304 ◽  
Author(s):  
M. A. Sekheta ◽  
G. A. Milovanović ◽  
T. J. Janjić



1998 ◽  
Vol 128 (1-2) ◽  
pp. 43-48 ◽  
Author(s):  
Gordana A. Milovanović ◽  
Radivoj B. Petronijević ◽  
Mira M. Čakar


The Analyst ◽  
1994 ◽  
Vol 119 (10) ◽  
pp. 2251 ◽  
Author(s):  
Zhong-liang Zhu ◽  
Chuan-qiang Han ◽  
Zhi-cheng Gu ◽  
Rong-mei Chen


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


2004 ◽  
Vol 37 (1) ◽  
pp. 43-58 ◽  
Author(s):  
Snežana S. Mitić ◽  
Gordana Ž. Miletić ◽  
Mirjana V. Obradović




2001 ◽  
Vol 66 (3) ◽  
pp. 205-211
Author(s):  
S.S. Mitic ◽  
J.I. Vucetic ◽  
S.M. Miletic ◽  
D.A. Kostic

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.







2000 ◽  
Vol 65 (8) ◽  
pp. 595-601
Author(s):  
S.S. Mitic ◽  
J.I. Vucetic ◽  
S.M. Miletic ◽  
D.A. Kostic

A kinetic method is described for the determination of Se(IV) based on its inhibiting effect on the Fe(III) catalysis of the oxidation of C6H5COONa with hydrogen peroxide. The detection limit is 0.06 pg cmT The relative error ranges between 2.1 and 9.5 % for the concentration interval 0.26 to 2.6 ?g cm-3. Kinetic equations are proposed for the investigated process. The effects of certain foreign ions upon the reaction rate were determined in order to assess the selectivity of the method. The method was applied for the determination of Se(IV) in pharmaceutical samples.



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