(23) Unger. Κ.; GoeU. Η. Ger. Of/en IS7». 2.802Ϊ (24) Unger. K.: Roumeliotis. P.; Mueller. H.; Goett. H. J Chromatogr. 1980. 21)2. 3. (25) Mueller. H.; Roumeliotis. P.: Unger. Κ. Κ.. in pre··. (26) Knox. J. H.; Gilbert, M.T.DOS 2\946.688. (CI COI B31/08) June 12. 1980. Brit. Appl. 78/45397. Nov. 21,1978. U.S. Patent. (27) Gilbert. M. T.: Knot. J. H.; Singh. B.. unpublished work. (28) Goetz. H. PhD. Thesis. Technische Hochschule. 6100 l)arm»tedt. K.R.G..
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(.10) Snyder I.. K. "Principle· of Adsorp. lion (hromaWncraphv"; IVkker: New York. 1968; p. 168. (31) Knoi. J. H. "High Performance Liq uid Chromatography"; Kdinburgh Uni versity Press: Edinburgh. 1978: p. 5. (32) Brutow. P. Α.; Kim». J. H. Chromatographta 1977.10. 279. (33) Guiochon. G ; Colin. H. "Chromatog raphy Review"; Spectra Physics. Santa Clara, 1978.4,8. (»4) Snyder. L. R.; Kirkland. J. J. "Intro duction to Modern Liquid Chromatogra phy"; Wiley: New York. 1979; p. 257. (35) Tanaka. N.;Tokuda. Y ; Iwaguchi. K.; Araki. M. J. Chromatogr 1982,239.761. (36) Roumeliotis. P. Ph.D. Thesis. Technische Hochschule. 6100 Darmstadt. P.R.G.. 1977. (37) Bakalyar. St. Κ . Mcllwrick. H. Roggendorf. K. J Chromatogr 1977. /42T353. (38) WMund.K. G.J Chromatogr. 1975. 7/5.411. (39) Johansson. 1. M : Wahlund. K. G.; Schill. G. J. Chromatogr. 1978.149. 281. (40) Gloor. R.: Johnson. E. L J. Chroma togr. Sri. 1977, IS. 413. (41) l'nger. K.. presented at the 13th In ternational Symposium on Chromatogra phy. Cannes. June 30 July 4.1980. (42) Glajch. J. L: Kirkland; J. J.: Squire. K. M.; Minor. J. M. J Chromatogr. 1980. 199.57. (43) Colin. H.: Guiochon. G.; Prusova. D. J Chromatogr. 1982.234.1.
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HIGH PURITY ACIDS • ACS REAGENT ACIDS • REDISTILLED ACIDS Produced by taking ACS Reagent Grade acids and redistilling them in glass. This distaiiatlon yields high purity acids with very low or absent trace elements.
DOUBLE-DISTILLED ACIDS Κ. Κ. Unger is professor of chemistry at Johannes Gutenberg-Universi tat, Maint, F.R.G. He received his PhD in chemistry at the Technische Hochschule of Darmstadt, F.R.G.. in 1965. He was visiting professor at Northeastern University in 1973 and at National University of Singapore in 1982. His research focuses on the synthesis and characterization of tailor-made porous adsorbents and supports and their application in var ious fields, particularly HPLC.
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ORCLE 102 ON REAOER SERVICE CARD ANALYTICAL CHEMISTRY. VOL. 55. NO. 3. MARCH 1983 · 37» A
