With the use of spectral information, a means is reported for evaluating and optimizing infrared (IR) interpretations. A procedure is described for numerically estimating the spectral difference between the interpreted IR spectrum and a synthetic spectrum composed of the characteristic subspectra of the functional groups in the interpretation. The expectation value assigned to each functional group by an interpreter can then be modified to minimize the estimated numerical differences and improve the quality of the interpretation.
WoodruffH. B. and SmithG. M., Analytica Chim. Acta133, 545 (1981); TomelliniS. A.SapersteinD. D.StevensonJ. M.SmithG. M.WoodruffH. B., and SeeligP. F., Anal. Chem.53, 2367 (1981); SmithG. M. and WoodruffH. B., J. Chem. Inf. Comp. Sci.24, 33 (1984); TrulsonM. O. and MünkM. E., Anal. Chem.55, 2137 (1983); ZupanJ. and MunkM. E., Anal. Chem.57, 1609 (1985); WieboldtR. C.HohneB. A., and IsenhourT. L., Appl. Spectrosc.34, 7 (1980); DelaneyM. F. and WarrenF. V.Jr., Anal. Chem.53, 1460 (1981); TomelliniS. A.StevensonJ. M., and WoodruffH. B., Anal. Chem.56, 227 (1984); and VisserT. and van der MaasJ. H., Analytica Chim. Acta122, 357 (1980).
2.
ErleyD. S., Anal. Chem.40, 894 (1968); RasmussenG. T. and IsenhourT. L., Appl. Spectrosc.33, 371 (1979); PowellL. A. and HieftjeG. M., Analytica Chim. Acta100, 313 (1978); SmallC. W.RasmussenG. T., and IsenhourT. L., Appl. Spectrosc.33, 444 (1979); LowryS. R. and HupplerD. A., Anal. Chem.53, 889 (1981); de HasethJ. A. and AzarragaL. V., Anal. Chem.53, 2292 (1981); AzarragaL. V.WilliamsR. R., and de HasethJ. A., Appl. Spectrosc.35, 466 (1981); HannahR. W.CoatesJ. P.SavitskyA.FordM. A., and CarterH. V., U.S. Patent 4,365,303 (1982); SaekiS.TanabeK.TamuraT.TasumiM., and SuzukiI., Appl. Spectrosc.36, 148 (1982); LaudeD. A.JohlmanC. L.CooperJ. R., and WilkinsC. L., Anal. Chem.57, 1044 (1985); FrankelD. S., Anal. Chem.56, 1011 (1984); and Sadtler Research Laboratories, Philadelphia, Pennsylvania.
3.
SmithG. M. and WoodruffH. B., QCPE13, 426 (1981), Quantum Chemistry Program Exchange, Department of Chemistry, Indiana University, Bloomington, Indiana 47405.
4.
See, for example: ColthupN. B.DalyL. H., and WiberleyS. E., Introduction to Infrared and Raman Spectroscopy (Academic Press, New York, 1975), 2nd ed.
5.
Circle Cell, Barnes Analytical, div. Spectra-Tech, Stamford, Connecticut.
6.
TomelliniS. A.StevensonJ. M.WoodruffH. B., and HartwickR. A., Analytica Chim. Acta162, 227 (1984).
7.
TomelliniS. A.HartwickR. A., and WoodruffH. B., Appl. Spectrosc.39, 331 (1985).