Potentiometric determination of sulfur dioxide in flue gases with an ion selective lead electrode

1973 ◽  
Vol 45 (13) ◽  
pp. 2283-2284 ◽  
Author(s):  
Marilou. Young ◽  
John N. Driscoll ◽  
Kimball. Mahoney
Keyword(s):  
Sulfur Dioxide ◽  
Flue Gases ◽  
Potentiometric Determination ◽  
Lead Electrode

The Determination of Sulfur Dioxide-Correction

1917 ◽  
Vol 9 (12) ◽  
pp. 1148-1148
Author(s):  
James Withrow
Keyword(s):  
Sulfur Dioxide

Ion Selective Electrodes for Potentiometric Determination of Tizanidine in Its Pharmaceutical Dosage Form

2016 ◽  
Vol 12 (3) ◽  
pp. 177-184 ◽  
Author(s):  
Gamal Abdel-Hafiz Mostafa ◽  
Mohammed Hefnawy ◽  
Mohammed Abounassif ◽  
Amer Alanazi ◽  
Abdulrahman Al-Majed ◽  
...  
Keyword(s):  
Dosage Form ◽  
Potentiometric Determination ◽  
Ion Selective Electrodes ◽  
Pharmaceutical Dosage Form

Determination of subnanogram amounts of sulfur dioxide and sulfites by pneumatopotentiometry

1986 ◽  
Vol 51 (10) ◽  
pp. 2077-2082 ◽  
Author(s):  
Jan Langmaier ◽  
František Opekar
Keyword(s):  
Sulfur Dioxide ◽  
Redox Potential ◽  
Sodium Hydroxide ◽  
Porous Membrane ◽  
Membrane Electrode ◽  
Iodine Monochloride ◽  
Membrane Pores ◽  
Relative Standard ◽  
Limit Of Quantitation

Gold porous membrane electrode has been used for the potentiometric determination of small amounts of sulfur dioxide absorbed in the solutions of sodium tetrachloromercurate or sodium hydroxide. Sulfur dioxide is released by the reaction with an acid into a stream of nitrogen and led to the electrode immersed into the solution of iodine monochloride. Part of SO2 penetrates through the membrane pores into the solution where it is oxidized. The electrode redox potential change is a measure of the SO2 concentration in the absorption solution. In the solution of 1 . 10-5 M[ICl2]- in 0.02 M-HClO4 the limit of quantitation was found to be 0.07 ng SO2 . ml-1. The relative standard deviations of 1.4% and 2.5% were found for the determinations of 10 ng and 0.5 ng of SO2, respectively. Higher concentrations of H2S interfere only in the hydroxide solution. About 10 samples can be analyzed per one hour.

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