Contents
319 A
REPORT 297 A ON THE COVER. Scanning force microscopies
Simple, low-maintenance instrumentation that can be used to image at the microscopic and nanoscopic level in a variety of environments has made this relatively young technology popular among analysts. Bruce A. Parkinson and Darrell R. Louder of Colorado State University describe the evolution of the scanning force microscope and its application to problems in chemistry, physics, and biology.
297 A
REPORT 308 A Environmental SFE
308 A
323 A
Supercritical fluid extraction offers researchers the chance to examine extraction parameters that were often too difficult to determine with classical liquid extraction. Mary Ellen P. McNally of E. I. du Pont de Nemours and Co. presents an overview of the current theoretical understanding of SFE and predicts the directions of future work.
COVER PHOTO COURTESY DIGITAL EQUIPMENT CORP.
278 A
Analytical Chemistry, Vol. 67, No. 9, May 1, 1995
ANALYTICAL C Η Ε Μ I S T R Y MAY 1, 1995 VOLUME 67 NUMBER 9 ANCHAM 67(9) 277 A-334 A/1497-1646 (1995) ISSN 0003-2700 Registered in U.S. Patent and Trademark Office ©Copyright 1995 by the American Chemical Society
DEPARTMENTS 281 A In AC Research 287 A Editorial
Time constants. Chemists may be de feated in their justification of the societal importance of education and research in analytical chemistry by an unwillingness to better address and articulate the dy namic nature of cause-and-effect time constants to politicians, managers, and public journalists. 289 A Analytical Currents 294 A News
1995 EAS award winners. · Thermo to buy Fisons scientific instruments. · Tri pos and ForeFront form alliance. · HP's Dieter Hoehn to retire. · Millipore sells electrophoresis business. · Nomina tions. · For Your Information.
304 A Software Data sharing on a unified platform. ResearchStationfor Windows, which acts as an electronic notebook to assist scien tists in recording, archiving, and sharing data, is reviewed by Raymond E. Dessy and colleagues at Virginia Polytechnic Institute and State University. 306 A Books Analyzing surfactants. Walter Giger of the Swiss Federal Institute of Technology reviews Introduction to Surfactant Analy sis. * Books received. 317 A Meetings The 43rd ASMS Conference on Mass Spectrometry and Allied Topics will be held May 21-26 in Atlanta. · Conferences. • Call for Papers. 319 A Focus Uncertain gold. Forensic drug testing has evolved into an important part of judg ing athletes' performance at the Olym pics.
323 A Product Review
Differential scanning calorimetry. DSC continues to assimilate advanced compo nents for better heat measurement and control. We review the basic theory in volved and compare the features of repre sentative instruments. 328 A S New Products
An energy-dispersive XRF analyzer, a spectrophotometer with array detection, and a multimedia FT-IR instrument are fea tured. · Instrumentation. · Literature. 332 A Information Express 1C I I AC Research Contents 1497-1645 • AC Research 1646 Author Index
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. 9, May 1, 1995 279 A
