Contents
REPORT 22 A Organically modified s o l - g e l sensors
22 A
Sol-gel techniques can be used to make biosensors, waveguide sensors, and modified electrodes in a variety of configurations. 0. Lev and colleagues at the Hebrew University of Jerusalem (Israel) describe the various sol-gel processes, compare the primary routes of organic modification of ceramics and composites, and present sensor applications that demonstrate the characteristics and current limitations of sol-gel technology. REPORT 39 A ON THE COVER. Stationary phases: T h e Achilles' heel in HPLC of protein p h a r m a c e u t i cals?
51 A
39 A
2 A
Analytical Chemistry, Vol. 67, No. 1, January 1, 1995
Assuming that columns ordered today will behave identically to those ordered previously can be unwise for analytical chemists dealing with protein pharmaceuticals. Benny S. Welinder, Troels Kornfelt, and Hans H. Siirensen of Novo Nordisk A/S (Denmark) describe their experiences with column-to-column and batch-tobatch variations in commercially available stationary phases and suggest ways to avoid the problems these variations can cause.
ANALYTICAL
CHEMISTRY
JANUARY 1, 1995 VOLUME 67 NUMBER 1 ANCHAM 67(1)1 A-60 A/1-236 (1995) ISSN 0003-2700 Registered in U.S. Patent and Trademark Office ©Copyright 1994 by the American Chemical Society
DEPARTMENTS In AC Research 13A Editor's Column
Analytical Chemistry makes change in format. Beginning with the Jan. 1, 1995 issue, an expanded A-page section of the journal will appear in thefirstissue of the month. 15 A Analytical Currents 19A Editorial
Lengthening research papers. Authors should realize the need to carefully select the most important and relevant results and construct a concise and clear presentation.
34 A Software
56 A New Products
It's a visual adventure! Lab View, a graphical programming system based on displaying and collecting icons to acquire, process, and show data, is reviewed by John P. Walters of St. Olaf College. · Software released.
A GPC/SEC system for polymer characterization, an automated workstation for DNA sequencing, and an MS gas analyzer are featured. · Instrumentation. • Literature. · Catalogs. 60 A Information Express
36 A Books
Separating inorganic species. Richard Cassidy of the University of Saskatchewan reviews a text on chromatography for inorganic chemistry. · A book on fractionation using packed-column SFC and SFE is reviewed by Karin Markides of the University of Uppsala. · Books received. 44 A Meetings
1C AC Research Contents 1-228 AC Research 229 Instructions to Authors 232 Ethical Guidelines
20 A News
HPCE '95. The 7th International Symposium on High-Performance Capillary 235 Electrophoresis will be held Jan. 29-Feb. 2 Copyright Status Form in Wurzburg, Germany. · Conferences. • Short Courses. 236
New Advisory Board and A-page Advisory Panel members appointed. • For Your Information.
51 A Product Review
31 A Focus
Artificial blood. Designing blood substitutes for emergency care requires methods to measure their oxygen transport activity and possible toxicity.
Author Index
GFAAS: A mature technique for a modest investment. The graphite furnace has become the analyst's atomizer of choice because it can be used to determine trace amounts of metals in a variety of matrices. We review the basic theory involved and compare the features of representative commercial instruments.
Analytical Chemistry (ISSN 0003-2700) is published semimonthly by the American Chemical Society, 1155 Sixteenth St., N.W., Washington, DC 20036. Second-class postage paid at Washington, DC, and additional mailing offices. Postmaster: Send address changes to Analytical Chemistry, Member & Subscriber Services, P.O. Box 3337, Columbus, OH 43210. Canadian GST Reg. No. R127571347.
Analytical
Chemistry,
Vol. 67, No. 1, January
1, 1995
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