Sulfur dioxide determination

Claim 1

A METHOD OF DETERMINING THE CONCENTRATION OF SULFUR DIOXIDE IN A FLOWING GAS MIXTURE THAT IS ESSENTIALLY FREE FROM OTHER CONSTITUENTS WHICH DESOLVE IN WATER TO FORM AN ELECTROLYTE WHICH COMPRISES PASSING THE GAS MIXTURE IN INTIMATE CONTACT WITH A SOLUTION OF SULFUR DIOXIDE IN WATER OF KNOWN ELECTRICAL CONDUCTIVITY WHILE MAINTAINING A SUBSTANTIALLY CONSTANT TEMPERATURE AND PRESSURE, CONTROLLING THE RATE OF PASSAGE OF THE GAS MIXTURE AND THE RELATIVE AMOUNTS OF THE GAS MIXTURE AND AQUEOUS SOLUTION OF SULFUR DIOXIDE TO DISSOLVE A PORTION OF THE SULFUR, DIOXIDE IN THE SOLUTION AND LEAVE A SUBSTANTIAL PORTION OF THE SULFUR DIOXIDE IN THE GAS MIXTURE UNDISSOLVE, MAINTAINING CONTACT OF THE GAS MIXTURE WITH THE AQUEOUS SOLUTION OF SULFUR DIOXIDE FOR SUFFICIENT TIME TO ESTABLISH SUBSTANTIAL EQUILIBRIUM BETWEEN THE RESULTING AQUEOUS SOLUTION OF SULFUR DIOXIDE AND SAID GAS MIXTURE WITH RESPECT TO SULFUR DIOXIDE, SEPARATING THE RESULTING AQUEOUS SOLUTION OF SULFUR DIOXIDE FROM THE GAS MIXTURE, AND MEASURING THE ELECTRICAL CONDUCTIVITY OF THE RESULTING SEPARATED AQUEOUS SOLUTION OF SULFUR DIOXIDE WHILE SUBSTANTIALLY AT SAID TEMPERATURE AND PRESSURE, AS AN INDEX OF THE CONCENTRATION OF SULFUR DIOXIDE IN THE GAS MIXTURE.

Claim 2

A METHOD OF DETERMINING THE CONCENTRATION OF SULFUR DIOXIDE IN A FLOWING GAS MIXTURE THAT IS ESSENTIALLY FREE FROM OTHER CONSTITUENTS WHICH DESOLVE IN WATER TO FORM AN ELECTROLYTE WHICH COMPRISES PASSING THE GAS MIXTURE IN INTIMATE CONTACT WITH A SOLUTION OF SULFUR DIOXIDE IN WATER OF KNOWN ELECTRICAL CONDUCTIVITY WHILE MAINTAINING A SUBSTANTIALLY CONSTANT TEMPERATURE AND PRESSURE, CONTROLLING THE RATE OF PASSAGE OF THE GAS MIXTURE AND THE RELATIVE AMOUNTS OF THE GAS MIXTURE AND AQUEOUS SOLUTION OF SULFUR DIOXIDE TO DISSOLVE A PORTION OF THE SULFUR, DIOXIDE IN THE SOLUTION AND LEAVE A SUBSTANTIAL PORTION OF THE SULFUR DIOXIDE IN THE GAS MIXTURE UNDISSOLVE, MAINTAINING CONTACT OF THE GAS MIXTURE WITH THE AQUEOUS SOLUTION OF SULFUR DIOXIDE FOR SUFFICIENT TIME TO ESTABLISH SUBSTANTIAL EQUILIBRIUM BETWEEN THE RESULTING AQUEOUS SOLUTION OF SULFUR DIOXIDE AND SAID GAS MIXTURE WITH RESPECT TO SULFUR DIOXIDE, SEPARATING THE RESULTING AQUEOUS SOLUTION OF SULFUR DIOXIDE FROM THE GAS MIXTURE, AND MEASURING THE ELECTRICAL CONDUCTIVITY OF THE RESULTING SEPARATED AQUEOUS SOLUTION OF SULFUR DIOXIDE WHILE SUBSTANTIALLY AT SAID TEMPERATURE AND PRESSURE, AS AN INDEX OF THE CONCENTRATION OF SULFUR DIOXIDE IN THE GAS MIXTURE.