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If y o u do h i g h - p r e s s u r e l i q u i d chromatography, these new Chrom a t r o n i x a c c e s s o r i e s can m a k e your job a lot easier. Sample injection valve. Stainless steel valve injects successive sam ples of identical volume at pres s u r e s u p to 3 0 0 0 p s i . E x t e r n a l , replaceable sample loop of 20,100 or 500 μΐ. Columns. lA" O.D. stainless steel columns with easily removable bed support filters. 2mm bore. 500 and 1 0 0 0 mm lengths. N e w e s t packings. High-efficiency packings with superficially porous, chemically bonded phases for ad sorption, reverse-phase and ionexchange chromatography. Automatic column packer. Motor ized time-saver feeds dry packing into column and packs it to uni form, reproducible density. Packs columns u p to 1 m long. A l s o a v a i l a b l e are c o m p l e t e chromatographs, detectors and re corders, plus switching valves and fittings. Contact C h r o m a t r o n i x , Inc., 2743 Ninth Street, Berkeley, CA 94710. Phone (415) 841-7221.
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(39) R. M. Dagnall, G. F. Kirkbright, T. S. West, and R. Wood, Analyst, 97, 245 (1972). (40) R. M. Dagnall, G. F. Kirkbright, T. S. West, and R. Wood, Anal. Chem., 43, 1765(1971). (41) V. V. Nalimov, V. V. Nedler, and N. A. Arakel'jan, Ind. Lab., 28, 342 (1962). (42) Yu. I. Belyaev, L. M. Ivancov, B. I. Kostin, and V. V. Semev, "Proc. 12th Coll. Spectr. Intern.," Exeter 1965, ρ 606, Adam Hilger, 1966. (43) V. I. Maslov, J. Appl. Spectrosc, USSR, 2, 131 (1965). (44) I. Balslev, Phys. Rev., 143, 636 (1966). (45) F. R. Stauffer and H. Sukai, Appl. Opt., 7, 61 (1968). (46) W. Snelleman, T. C. Rains, K. W. Yee, H. D. Cook, and O. Menis, Anal. Chem., 42, 394 (1970). (47) U. Haisch, K. Laqua, and W. D. Hagenah, Spectrochim. Acta, 26B, 651 (1971). (48) W. D. Hagenah, U. Haisch, and K. Laqua, "Proc. 14th Coll. Spectr. In tern.," Debrecen 1967, ρ 706, Adam Hil ger, 1968. (49) D. W. Golightly, R. N. Kniseley, and V. A. Fassel, Spectrochim. Acta, 25B, 451 (1970).
(50) B. L. Vallée and M. Margoshes, Anal. Chem., 28, 1975 (1956). (51) M. Margoshes, Spectrochim. Acta, 25B, 113 (1970). (52) P. W. J. M. Boumans and G. Brouwer, ibid., 27B, 247 (1972). (53) J. D. McGee, "Astronomical Techniques," ρ 302, W. A. Hiltner, Ed., Univ. Chicago Press, Chicago, 111., 1962. (54) G. H. Morrison, paper presented at Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy, March 1973. (55) P. H. Wendland, IEEE Trans. Elec tron Devices, ED-14, 285 (1967). (56) M. H. Crowell and E. F. Labuda, Bell Syst. Tech. J., 48, 1481 (1969). (57) S. M. Blumenfeld, G. W. Ellis, R. W. Redington, and R. H. Wilson, IEEE Trans. Electron Devices, ED-18, 1036 (1971). (58) J. V. Sullivan and A. Walsh, Appl. Opt., 7, 1271 (1968). (59) J. D. Winefordner and R. C. Elser, Anal. Chem., 43 (4), 25A (1971). (60) R. H. Wendt and V. A. Fassel, ibid., 37,920(1965). Work supported by the National Institutes of Health Grant No. GM 19905-01.
K e n n e t h W . B u s c h received his B S in c h e m i s t r y from Florida A t l a n t i c University in 1966. In 1971 h e re ceived his P h D in analytical chemis try from Florida S t a t e University, where his research advisor was T . J . Vickers. F r o m S e p t e m b e r 1971 t o J u n e 1972, he t a u g h t general chemis
try a t Florida S t a t e University as a postdoctoral t e a c h i n g fellow. H e is currently a postdoctoral fellow a t Cornell University, where he is work ing with George H . Morrison on t h e development of m u l t i e l e m e n t m e t h ods of analysis by flame spectrome try. In addition, his research interests include t h e d e v e l o p m e n t of spectro scopic i n s t r u m e n t a t i o n for analysis a n d t h e theory of spectrochemical ex citation in flames a n d p l a s m a s . D r . Busch is a m e m b e r of t h e A m e r i c a n Chemical Society, t h e Society for Ap plied Spectroscopy, a n d a Fellow of the C h e m i c a l Society (London). H e is also a m e m b e r of S i g m a X i .
G e o r g e H . Morrison, professor of chemistry a n d director of t h e M a t e r i als Science Center Analytical Facility a t Cornell University, is one of t h e
leaders in t h e field of t r a c e analysis a n d m a t e r i a l s characterization. His current interests include atomic spec troscopy, m a s s spectroscopy, a n d n e u t r o n activation analysis, a n d he is a principal investigator in t h e L u n a r Analysis P r o g r a m of N A S A . H e is coauthor w i t h H e n r y Freiser of t h e book, " S o l v e n t E x t r a c t i o n in Analyti cal C h e m i s t r y , " editor of t h e book, " T r a c e Analysis: Physical M e t h o d s , " a n d a u t h o r or coauthor of more t h a n 110 publications. H e received t h e 1971 A m e r i c a n C h e m i c a l Society Award in Analytical Chemistry a n d is C h a i r m a n - E l e c t of t h e Division of Analytical Chemistry of A C S .
722 A · ANALYTICAL CHEMISTRY, VOL. 45, NO. 8, JULY 1973
