Appeal No. 1997-3142
Application No. 08/323,660
transmitted IR radiation and emitted secondary light traveling
through the sample cell in substantially orthogonal
directions;
(g) measuring the total pressure of the gas sample;
(h) measuring the temperature of the gas sample;
(i) determining the partial pressure of CO gas from the
2
absorbed amount of IR radiation measured in step (e) and the
temperature measured in step (h);
(j) determining the partial pressure of O gas from the
2
amount of omitted secondary light measured in step (f) and the
temperature measured in step (h);
(k) subtracting the sum of the partial pressures of CO2
and O determined in steps (i) and (j) from the total pressure
2
measured in step (g) to determine the partial pressure of N ;
2
and
(l) determining the concentration of CO , O and N gases2 2 2
dissolved in the liquid sample from the respective partial
pressures determined in steps(i), (j) and (k) and the
temperature measured in step (h).
The references relied on by the examiner are:
Billetdeaux et al. (Billetdeaux) 3,539,804 Nov. 10,
1970
Stanley et al. (Stanley) 3,725,658 Apr.
3, 1973
Gysi et al. (Gysi) 5,365,771 Nov. 22,
1994
(filed July 7, 1993)
Seiden et al. (Seiden) 5,426,593 June 20,
1995
(filed Apr. 2, 1993)
Liu et al. (Liu), “Evaluation of Some Immobilized Room-
Temperature Phosphorescent Metal Chelates as Sensing Materials
3
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