Comparison between ion chromatography and a spectrophotometric method for determination of nitrates in meat products

1995 ◽  
Vol 200 (4) ◽  
pp. 256-260 ◽  
Author(s):  
Enzo Bianchi ◽  
Roberta Bruschi ◽  
Rosa Draisci ◽  
Luca Lucentini
2021 ◽  
pp. 106513
Author(s):  
Eirini Kouti ◽  
Apostolia Tsiasioti ◽  
Constantinos K. Zacharis ◽  
Paraskevas D. Tzanavaras

2005 ◽  
Vol 82 (7) ◽  
pp. 1074 ◽  
Author(s):  
José C. Penteado ◽  
Lúcio Angnes ◽  
Jorge C. Masini ◽  
Paulo C. C. Oliveira

Planta Medica ◽  
2011 ◽  
Vol 77 (12) ◽  
Author(s):  
A Sapcanin ◽  
E Kovac Besovic ◽  
M Pazalja ◽  
D Kresic ◽  
E Mujic ◽  
...  

2012 ◽  
Vol 3 (7) ◽  
pp. 54-55
Author(s):  
VITTHAL A DIVATE ◽  
◽  
PARAMANAND S MANOLI ◽  
SAVITA R DHONGADE

Author(s):  
RUAA MUAYAD MAHMOOD ◽  
HAMSA MUNAM YASSEN ◽  
SAMAR , NAJWA ISSAC ABDULLA AHMED DARWEESH ◽  
NAJWA ISSAC ABDULLA

Simple, rapid and sensitive extractive spectrophotometric method is presented for the determination of glibenclamide (Glb) based on the formation of ion-pair complex between the Glb and anionic dye, methyl orange (MO) at pH 4. The yellow colored complex formed was quantitatively extracted into dichloromethane and measured at 426 nm. The colored product obeyed Beer’s law in the concentration range of (0.5-40) μg.ml-1. The value of molar absorptivity obtained from Beer’s data was found to be 31122 L.mol-1.cm-1, Sandell’s sensitivity value was calculated to be 0.0159 μg.cm-2, while the limits of detection (LOD) and quantification (LOQ) were found to be 0.1086 and 0.3292 μg.ml-1, respectively. The stoichiometry of the complex created between the Glb and MO was 1:1 as determined via Job’s method of continuous variation and mole ratio method. The method was successfully applied for the analysis of pharmaceutical formulation.


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