Appeal No. 1996-1813
Application No. 08/117,453
calibration equation and its constants (Column 3, lines 26-
30). After the system has been calibrated, the absorbance of
unknown samples are taken to determine the concentration of
aromatic and nonaromatic components. (Column 3, lines 31-35).
The reference does not describe the automatic injecting of the
calibration standards.
The Maggard PCT application WO ‘762
Maggard describes a process for the determination of
PIANO aromatics (paraffins, aromatics, isoparafins, naphthenes
and olefins) and alpha olefins constituents in complex
mixtures, such as gasoline, by near infrared spectroscopy.
(Page 4, lines 5-9 and 21-24). Instrument calibration is said
to be accomplished by performing analysis on known samples to
determine the weighting constants or equivalents. For
example, octane measurement is said to be obtained by
determining absorbance for known samples at wavelengths within
each of the specific bands for each of the PIANO components.
(Page 7, lines 18 to page 8, line 12). The absorbance
measured is subject to analysis for the determination of
weighting constants. The process is subsequently repeated for
unknown samples. (Page 8, line 13-16). Examples 1, 3 and 4
describe the use of calibration sets which comprise 50
6
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