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(1) Allerhand, Α.; Addleman, R. E.; Osman, D. J. Am. Chem. Soc. 1985,107, 5809-10. (2) Allerhand, Α.; Dohrenwend, M. J, Am. Chem. Soc. 1985,107, 6684-88. (3) Allerhand, Α.; Addleman, R. E.; Osman, D.; Dohrenwend, M. J. Magn. Reson. 1985, 65, 361-63. (4) Maple, S. R.; Allerhand. A. J. Magn. Reson. 1986, 66, 168-71. (5) Allerhand, Α.; Bradley, C. H. J. Magn. Reson. 1986,67,173-76. (6) Maple, S. R.; Allerhand, A. J. Am. Chem. Soc, 1987,109, 56-61. (7) Conover, W. W. In Topics in Carbon-13 NMR Spectroscopy; Levy, G. C , Ed.; Wi ley: New York, 1984; Vol. 4, Chapter 2, and references cited therein. (8) Bammel, B.; Evilia, R. F. Anal. Chem. 1980,52,1999-2000. (9) Altgelt, K. H.; Gouw, T. H., Eds. Chro matography in Petroleum Analysis; Marcel Dekker: New York, 1979. (10) Rossini, F. D.; Mair, B. J.; Streiff, A. J.
Hydrocarbons from Petroleum; Reinhold: New York, 1953. (11) Camin, D. L. In Chromatography in Petroleum Analysis; Altgelt, Κ. Η.; Gouw, T. H., Eds.; Marcel Dekker: New York, 1979; Chapter 1. (12) Whittemore, I. M. In Chromatography in Petroleum Analysis; Altgelt, Κ. Η.; Gouw, T. H., Eds.; Marcel Dekker: New York, 1979; Chapter 3. (13) Johansen, N. G.; Ettre, L. S.; Miller, R. L. J. Chromatogr. 1983, 256, 393-417. (14) O'Brien, A. P.; Ray, J. E. Analyst 1985, 110, 593-97, and references cited therein. (15) Hayes, P. C , Jr.; Anderson, S. D. Anal. Chem. 1986, 58, 2384-88, and references cited therein. (16) Gray, G. A. Anal. Chem. 1975, 47, 546A-564A. (17) Cookson, D. J.; Smith, Β. Ε. Fuel, 1982, 61, 1007-13. (18) Petrakis, L.; Fraissard, J. P., Eds. Magnetic Resonance-Introduction, Ad vanced Topics, and Applications to Fossil Energy; Reidel: Dordrecht, 1984. (19) Lindeman, L. P.; Adams, J. Q. Anal. Chem. 1971, 43, 1245-52. (20) Dalling, D. K.; Pugmire, R. J.; Grant, D. M.; Hull, W. E. Magn. Reson. Chem. 1986, 24, 191-98. (21) Patience, R. L.; Yon, D. Α.; Ryhack, G.; Maxwell, J. R. Phys. Chem. Earth 1979, 12, 287-93. (22) Moller, M.; Ritter, W.; Cantow, H.-J. Polym. Bull. 1981, 4, 609-16. (23) Cookson, D. J.; Smith, B. E. J. Magn. Reson. 1984, 57, 355-68. (24) Shofstahl, J. H.; Hardy, J. K. Anal. Chem. 1986, 58, 2412-14, and references cited therein. (25) Renzoni, G. E.; Shankland, E. G.; Gaines, J. Α.; Callis, J. B. Anal. Chem. 1985,57,2864-67. (26) Hore, P . J . J. Magn. Reson. 1983, •55, 283-300, and references cited there in. (27) Angyal, S. J. Adv. Carbohydr. Chem. Biochem. 1984, 42, 15-68, and references cited therein. (28) Angyal, S. J.; Wheen, R. G. Aust. J. Chem. 1980, 33, 1001-11. (29) Serianni, A. S.; Pierce, J.; Huang, S.-G; Barker, R. J. Am. Chem. Soc. 1982, 104, 4037-44. (30) Synder, J. R.; Serianni, A. S. J. Org. Chem. 1986,57, 2694-2702. (31) Cooper, J. W.; Mackay, I. S.; Pawle, G. B. J. Magn. Reson. 1977, 28, 405-15. (32) Shaka, A. J.; Barker, P. B.; Bauer, C. J.; Freeman, R. J. Magn. Reson. 1986, 67, 396-401.
Adam Allerhand {left) is professor of chemistry at Indiana University, Bloomington. His research interests include development of NMR methods and their application to problems of chemical and biochemical interest.
Steven R. Maple {right) is a graduate student at Indiana University, where he is working on development and ap plications of ultra-high resolution NMR. He received his B.S. and M.S. degrees from West Virginia University.
processor chips can address e n o r m o u s a m o u n t s of memory. For example, t h e new Intel 80386 chip can a d d r e s s 4 bil lion bytes (one billion 32-bit words) of m a i n m e m o r y a n d 64 trillion bytes of virtual memory. In t h e near future, in expensive mass-produced personal c o m p u t e r s using t h e 80386 chip will be m u c h more powerful t h a n t h e c o m p u t ers t h a t are built i n t o c u r r e n t l y avail able commercial i n s t r u m e n t s .
Conclusion Ultra-high resolution methodology ex p a n d s t h e range of applications of N M R s p e c t r o s c o p y to q u a n t i t a t i v e analysis of complex mixtures. We can t h i n k of m a n y examples beyond those p r e s e n t e d above. R e a d e r s who have possible applications are encouraged to contact us.
Acknowledgment T h i s work was s u p p o r t e d by t h e N a tional Science F o u n d a t i o n (Grant P C M 83-04699) a n d t h e N a t i o n a l Insti t u t e s of H e a l t h (Grant G M 22620). We t h a n k Mr. R o b e r t E. A d d l e m a n and Mr. Deon O s m a n for their help.
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452 A · ANALYTICAL CHEMISTRY, VOL. 59, NO. 6, MARCH 15, 1987
