41st ASMS Conference on Mass Spectrometry and Allied Topics

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41 st ASMS Conference on Mass Spectrometry and Allied Topics May 30-June 4, 1993 San Francisco, CA

The 41st ASMS Conference on Mass Spectrometry and Allied Topics will be held at the Marriott Hotel in San Francisco, CA, May 3 0 - J u n e 4. The m e e t i n g will feature p l e n a r y lect u r e s , oral a n d p o s t e r s e s s i o n s , workshops, and special events. Topics to be covered in the morning and afternoon oral sessions include accelerator MS, surface analysis, biopolymers, distonic ions, elemental and isotope ratio analysis, environmental analysis, fast GC/MS, fullerenes and m e t a l - c a r b o n clusters, immunology, laser desorption/ ionization, LC/MS of small molecules, metal ion chemistry and i o n molecule reactions, n e u t r a l i z a t i o n reionization MS, polymer analysis, spray ionization, and trapped ions.

advanced MS interpretation, fundam e n t a l aspects of g a s - p h a s e ions, GC/MS for environmental analysis, LC/MS: the practice and the art, and practical MS/MS analysis. For more information on these courses as well as details on meeting registration, housing, and transportation, contact ASMS, 815 Don Gaspar, S a n t a Fe, NM 87501 (505-989-4517; fax 505989-1073). A listing of scheduled plenary lectures, symposia, and special events follows. Sunday, May 30 Sonoma wine country tour Graduate student mixer Workshop for young mass spectrometrists All-conference mixer

MEETINGS

Interest group lunches Poster sessions: metabolism and drug analysis, protein chemistry, environmental analysis, laser desorption/MALDI, trapped ion MS, ion fragmentation and ion structure, biological MS (including lipids), polymer analysis Afternoon oral sessions: biopolymers, LC/MS, metal ion chemistry and ion-molecule chemistry Evening workshops

Wednesday, June 2 Plenary lecture: Address by the 1993 recipient of the ASMS award for distinguished contribution to MS Plenary lecture: Strategies in environmental science. Ronald A. Hites, Indiana University ASMS business meeting Poster sessions: Metabolism and drug analysis, protein chemistry, environmental analysis, laser desorption/MALDI, trapped ion MS, elemental analysis and isotope ratio analysis, electrospray, atmospheric pressure ionization, and supersonic beams FAO Schwarz wine tasting

Thursday, June 3

Posters will be displayed all day, and authors will be present at the afternoon sessions. Topics to be covered include instrumentation (MS/ MS, computer applications, trapped ion MS, e l e c t r o s p r a y / a t m o s p h e r i c pressure ionization, TOF), biological MS (nucleotides, metabolism and drug analysis, carbohydrate chemistry, protein chemistry), surface ionization (FAB/SIMS, l a s e r desorption/MALDI, plasma desorption), ion chemistry (ion-molecule chemistry, ion f r a g m e n t a t i o n , ion s t r u c t u r e , physical/organic), and analytical applications (elemental, environmental, petroleum, polymers). ASMS will also sponsor six short courses on May 29 and 30. Topics include interpretation of mass spectra,

Monday, May 31 Plenary lecture: Accelerator MS: Maximalist hardware, minimalist detection limits. Jay C. Davis, Lawrence Livermore National Laboratory Morning oral sessions: accelerator MS, spray ionization, fast GC/MS, distonic ions Poster sessions: metabolism and drug analysis, carbohydrates, environmental analysis, computer applications, ion-molecule reactions, petroleum, process monitoring, FAB/SIMS and plasma desorption, nucleotides Afternoon oral sessions: spray ionization, fast GC/MS Evening workshops

Tuesday, June 1 Morning oral sessions: biopolymers, LC/MS, metal ion chemistry and ion-molecule chemistry, neutralization-reionization chemistry

Morning oral sessions: Laser desorption/ionization, environmental analysis, trapped ion MS, elemental analysis Interest group lunches Poster sessions: Metabolism and drug analysis, protein chemistry, MS/MS, TOFMS, ionmolecule reactions, ion fragmentation and ion structure, electrospray, atmospheric pressure ionization, supersonic beams Afternoon oral sessions: Laser desorption/ ionization, environmental applications, trapped ion MS, elemental analysis Evening workshops

Friday, June 4 Plenary lecture: The new attack on science and prospects with the new administration. Bill Lunch, Oregon State University Morning oral sessions: Surfaces, immunology, fullerenes, polymers

ANALYTICAL CHEMISTRY, VOL. 65, NO. 8, APRIL 15, 1993 · 397 A

MEETINGS

The Gordon Research Conferences are designed to extend the frontiers of science by fostering a free and informal e x c h a n g e of i d e a s a m o n g those actively involved in chemistry research or related fields. At each conference, meetings are held in the morning and evening, Monday through Friday, with the exception of Friday evening. The afternoons are available for recreation, reading, or participation in discussion groups. To promote discussion and to protect individual rights, no information presented at the conferences can be used without the specific authorization of the individual m a k i n g t h e contribution. Recording of lectures and photographing of slides are also prohibited. The unique concept of the conferences was established by Neil Gordon of the Johns Hopkins University in 1931. Gordon foresaw the importance of establishing direct communication among scientists in a setting t h a t removed distractions encountered at larger meetings. This y e a r 10 conferences are of p a r t i c u l a r i n t e r e s t to a n a l y t i c a l chemists: analytical chemistry; analytical pyrolysis; holography and optical signal processing; laser diagn o s t i c s in c o m b u s t i o n ; m a g n e t i c resonance; molten salts and liquid metals; nonlinear optics and lasers; reactive polymers, ion exchangers, and adsorbents; statistics in chemistry and chemical engineering; and three-dimensional electron microscopy of macromolecules. Technical programs for these follow. The fixed fee for resident participants is $480, which covers registration, room (double occupancy), and meals. The $440 fee for nonresident conferees covers r e g i s t r a t i o n a n d meals. The $390 guest fee includes room and meals only. If registration cards with advance payment are

Chemical analysis with electron beams. D. Joy Mapping the composition of crystalline materials at the atomic level. A. Ourmazd

Gordon Research Conferences postmarked at least three weeks before t h e conference, fees a r e d i s counted $50. More information can be obtained from Alexander M. Cruickshank, Gordon Research Center, University of Rhode Island, Kingston, RI 028810801 ( 4 0 1 - 7 8 3 - 4 0 1 1 or -3372; fax 401-783-7644; bitnet: bcpl01@uriacc). From J u n e 13 to Aug. 20, Cruickshank can be reached at Gordon Research Conferences, Colby-Sawyer College, New London, NH 03257 (603526-2870; fax 603-526-4717).

Analytical Chemistry August 8 - 1 3 New Hampton School, New Hampton, NH L. D. Rothman, Chair M. J. Wirth, Vice Chair K. L. Busch, discussion leader New mass spectrometry approaches for studying proteins. B. Chait Two-dimensional multiplex MS. A. Marshall J. Sweedler, discussion leader Microscopy and spectroscopy with resolution exceeding diffraction limits. T. Harris Photothermal spectroscopy: Characterizing materials of tomorrow. W. Weimer J. Dorsey, discussion leader Analytical and structural glycobiology: A scientific frontier for this decade. M. Novotny Breaking barriers in analytical chemistry with membranes. P. Dasgupta

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J. C. Oxley, discussion leader 101 things to do with isothermal and scanning calorimeters. L. Hansen Calorimetry as a problem-solving tool in an industrial environment. T. Hofelich M. Meyerhoff, discussion leader Sensitive and quantitative analysis using a fiber-optic biosensor. F. Ligler Immunoassays for trace chemical analysis: Monitoring toxic chemicals in humans, food, and the environment. M. Vanderlaan D. Bly, discussion leader Surface science under water. G. Richmond Analytical chemistry as a tool of law enforcement. J. Siegel Chemometric methods for the quantification of target species in the presence of interferences. S. Rutan Model error and second-order calibration with illustrations from HPLC diode array curve resolution applications. P. Gemperline

Analytical Pyrolysis June 1 3 - 1 8 Plymouth State College, Plymouth, NH R. Lehrle, Chair B. Evans, Vice Chair Mechanisms of Pyrolysis. R. Lehrle, discussion leader Py-GC/MS studies of thermal degradation mechanisms of high polymers. S. Tsuge High-temperature organic gas-phase chemistry. G. Zimmermann Fundamental investigations of pyrolysis mechanisms for biopolymers. P. Britt Geochemistry and Biomaterials—I. J. Boon, discussion leader Laser pyrolysis MS of single microparticles and macro-ions. H. Muezelaar Multiphoton laser ionization of lignin and model compounds. T. Weeding Biomarkers in bacteria studied by pyrolysis tandem MS. K. Voorhees Oxidative Degradation of Polymers—I. N. Billingham, discussion leader Key intermediates in the oxidative degradation of polyolefins. D. Carlsson Mechanisms underlying complex oxidation behaviors on polymers. R. Clough The role of hydrocarbon pyrolysis in hypersonic aircraft. H. Lander

MS and Special Techniques—I. G. Montaudo, discussion leader Studies of polymer degradation under varying atmospheres. J. Scrlvens Laser desorption techniques for analytical FTMS. C. Wilkins Geochemistry and Biomaterials—II. H. Muezelaar, discussion leader Relationships between biomacromolecules and their fossil counterparts. J. de Leeuw Chemistry of pyrolysls of polysaccharides. G. Richards Chemical degradation GC/MS in studies of organic matter in recent sediments. R. Ishiwatari Oxidative Degradation of Polymers—II. D. Carlsson, discussion leader Chemistry of antioxidant action. P. Klemchuk Physical factors influencing antioxidant loss. N. Blllingham Thermooxidative degradation and stabilization of photo-cross-linked polyethylene. B. Rânby MS and Special Techniques—II. T. Szikely, discussion leader Microstructure of copolymers by statistical modeling of their mass spectra. G. Montaudo Controlled degradation and etching of organic polymers by pulsed UV laser radiation. R. Srinivasan Pyrolysis MS of bacteria—from phenotype to genotype? P. Sisson Pyrolysis—General Aspects. R. Evans, discussion leader What can be said to the pyrolysis skeptics? T. Wampler Recent developments and old problems in the application of analytical pyrolysis in art, conservation, and archaeology. A. Shedrinsky R. Lattimer, discussion leader

Holography and Optical Signal Processing June 2 7 - J u l y 2 Plymouth State College, Plymouth, NH F.T.S. Yu, Chair W. T. Cathey, Vice Chair Optical Signal Processing and Computing. N. George, discussion leader Process of digital optics computing at AT&T. A. Huang Multifunctional optical scene analysis processors. D. Casasent Recent advances of optical signal processing and computing in China. G. G. Mu Optical Neural Networks. H. K. Liu, discussion leader Interpattern association neural networks, T. W. Lu Architecture and models of optical neural networks. T. Adage Novel Techniques for Optical Signal Processing. H. J. Caulfield, discussion leader Adaptive wavelet transforms. H. Szu Free-space optical multiple-access networks for interconnections. Y. LI Adaptive optical correlators for target tracking. D. A. Gregory Morphological Optical Signal Processing. W. T. Cathey, discussion leader Techniques and application of morphological signal processing. T. H. Chao Optical Memory and Photorefractive Crystal Signal Processing. P. Yen, discussion leader Optical properties and applications of photorefractive fibers. A. B. Bhalla

Research and application of optical memories in CIS. A. L. Mikaelian Applications of photorefractive crystals to optical computing. C. Gu Synthetic Holography. Ε. Ν. Leith, discussion leader Development of reflection and pseudo depth holography. Y. N. Denisyuk Display holography in China. D. H. Hsu Acousto-Optical Signal Processing and Neural Computing. A. Karpel, discussion leader Recent advances in acoustooptical cell signal processing. V. Lugt Synthesis and fabrication of 2D acoustooptical cell. A. Goutzonlis The bifurcating neuron—the role of synchronicity and chaos and neural computation. Ν. Η. Farhat Short Topics. F.T.S. Yu, discussion leader Super resolution and optical computing. S. L. Zhuang and I. Karim Electrooptic devices for optical processing. S. Kulakov, V. Sokolov, and S. Lee

The Modeler's View. K. Smyth, discussion leader Kinetic meaning of diagnostic measurements in premixed flames. G. Smith Role of laser diagnostics in the development of detailed kinetics for hydrocarbon diffusion flames. P. Lindstedt Diagnostics in Nasty Environments. J. Wolfrum, discussion leader Development and applications of rotational CARS. P-E. Bengtsson Simultaneous LIF temperature and concentration measurements in practical devices. V. Sick High-speed visualization of fuel sprays and combustion in engines. M. Drake and T. Fansler Diagnostics in Fast Flows. R. Miles, discussion leader Two-line instantaneous temperature and velocity imaging in supersonic mixing and combusting flows. B. McMillan LIF measurements in an H2/air supersonic combustion tunnel. G. Laufer

Information Optics, Digital Optics, and Holography. A. A. Frison, discussion leader Information optics. A. Lohmann Digital-optical computing in France. P. Hevel Progress of photopolymer holography. T. H. Jeong

Large Scales and Short Times. P. Paul, discussion leader LIF imaging of molecular distributions in smalland large-scale flames. J. ter Meulen Picosecond pump-probe absorption spectroscopy for species concentration measurements in turbulent flames. G. Fiechtner

Laser Diagnostics in Combustion

Magnetic Resonance

July 1 1 - 1 6

July 1 1 - 1 6

Plymouth State College, Plymouth, NH K. C. Smyth, Chair J - P . Taran, Vice Chair

Brewster Academy, Wolfeboro, NH M. S. Conradi, Chair J. Schaefer, Vice Chair

Fundamental Issues—Gas Phase. D. Greenhalgh, discussion leader CARS: New approaches and perspectives for the future. J-P. Taran Nearly degenerate four-wave mixing measurements of population lifetimes. L. Rahn The dynamic OH model for concentration and temperature measurements. K. KohseHovinghaus

Magnetic resonance detection and imaging using force microscope techniques. D. Rugar Intermolecular and multiple-quantum coherences and pseudo resonances in high-resolution experiment and theory. W. Warren

Fundamental Issues—Condensed Phases. R. Chang, discussion leader Diagnostic measurements of fundamental processes in droplets. M. Winter Particle size measurements: From spheres to aggregates. R. Santoro Resonant Wave Mixing. J. Jeffries, discussion leader Effects of quenching and thermal gratings in degenerate four-wave mixing. R. Farrow Degenerate four-wave mixing measurements of CH~ in flames and plasmas. S. Williams Imaging and temperature measurement of flames by degenerate four-wave mixing. P. Ewart Diagnostics in the IR. G. Roasco, discussion leader Quantitative tunable diode laser measurements of concentrations and temperature in hydrocarbon diffusion flames. M. Miller Spectroscopy of chemical reactions in supercritical water. T. Brill Chemistry-Turbulence Interactions. R. Dibble, discussion leader Diagnostic challenges to understanding flamevortex interactions. J. Driscoll UV-Raman measurement of reaction zones: The chemistry-scalar dissipation rate interaction. R. Pitz Mixture fraction imaging in turbulent nonpremixed flames. M. Long

Two-dimensional solid-state NMR studies of molecular sieve framework structures. C. Fyfe Dynamics, electronic properties, and phases of alkali fullerides. R. Tycko Transport-resolved 2D NMR. C. S. Johnson, Jr. Diffusion, diffraction, and micro-imaging. P. T. Callaghan NMR imaging of solid polymers. B. Blumich A. Pines, discussion leader Rotational and translational tunneling in molecular crystals as measured by high-resolution laser spectroscopy. P. Trommsdorff R. G. Griffin, discussion leader Free radicals generated from C 60 . R. Krusic Excited-state magnetic resonance of C 60 crystals. E.J.J. Groenen Recent developments in pulsed ESR. A. Schweiger A. Garroway, discussion leader NMR with atoms. M. Mehring Multiple-quantum NMR studies of motions in solids. K. Gleason Two- and three-dimensional variable-angle correlation spectroscopy in solid-state NMR. L. Frydman Slichter's contributions to magnetic resonance. R. E. Norberg R. G. Void, discussion leader Highly polarized xenon solid. G. Cates Informational content of relaxation-induced multispin orders. L. Werbelow

ANALYTICAL CHEMISTRY, VOL. 65, NO. 8, APRIL 15, 1993 · 399 A

MEETINGS Molten Salts and Liquid Metals August 1 5 - 2 0 Brewster Academy, Wolfeboro, NH J. Wilkes, Chair J. Enderby, Vice Chair Homogeneous Chemistry. R. Fehmann, discussion leader Superacid chemistry in low-temperature chloroaluminate liquids. R. Osteryoung Organometallic reaction chemistry. R. Carlin Water-tolerant low-temperature molten salts. M. Zaworotko Structure in Liquid Metals. P. Verkerk, discussion leader Magnetic resonance studies of liquid metal alloys. D. Quitman Solid and liquid compounds with strong anionanion interactions. W. Geertsma Structure in Molten Salts. Κ Sneddon, discussion leader Structure of acidic haloaluminate melts. M. Blander Raman and IR studies of alkali metal carbonates. M. Brooker Structure of the molten halides. R. Howe Electric Properties. K. Weil, discussion leader Electrical resistivity of liquid metal alloys. W. van der Lugt Substitutional chemistry and the metal-insulator transition. P. Edwards Liquid and plasma alkali metals. R. Redmer Thermodynamics. K. Todheide. discussion leader Critical behavior of metallic liquids. F. Hensel Quasichemical model of reciprocal molten salt solutions. A. Pelton Electrochemistry. D. Inman, discussion leader Electrochemical deposition and dissolution of aluminum in sodium tetrachloroaluminate melts. R. Berg Electrochemical studies in potassium fluoridehydrofluoric acid melts. M. Chemia Molten salt chemistry at temperature extremes. D. Sadoway Molten Salt Batteries. C. Hussey. discussion leader High-voltage sodium-sulfur battery. G. Mamantov High-temperature molten salt batteries. D. Vissers Thermodynamics and Simulations. Ε Franck discussion leader Heat capacity of liquid alloys. H. Ruppersberg Liquid state theory of binary systems. G. Kahl Network clusters in disordered materials. M. Saboungi

Nonlinear Optics and Lasers August 1 - 6 Brewster Academy, Wolfeboro, NH D. Z. Anderson, Chair Y. Silberberg, Vice Chair New Laser Sources. Y. Silberberg, discussion leader Semiconductor microdisk lasers. R. Slusher Up-conversion lasers. D. Hanna Nonlinear Optical Effects and Materials. D. Hanna, discussion leader AIGaAs below half-bandgap: The silicon of nonlinear optical materials. G. Stegeman Efficient frequency conversion in microstructured media. M. Fejer

Spatial-Temporal Dynamics in Optical Systems. K. Otsuka, discussion leader Spatio-temporal dynamics in nonlinear optical systems. W. Firth Turbulence and regular patterns in wide-aperture lasers J. V. Moloney

Sorption properties of hyper-cross-linked polystryene sorbents. V. A. Davankov Chromatographic sorbents based on reactive polymers grafted into inert supports: The tentacle" concept. W. Mϋ11er

Soliton Interactions. J. Sipe, discussion leader Optical vortex solitons in nonlinear refractive media G. Swartzlander, Jr. Soliton interactions in fiber arrays. A. Aceves

Polymers as Catalysts. P. A Yarnell, discussion leader Catalysis by ion-exchange latexes. W. Ford Hydroformation with polymer-bound rhodium triorganylphosphate catalysts. G. Challa

Atom Trapping and Cooling. S. Haroche, discussion leader Optically trapped atoms—a unique and simple medium for nonlinear optics. C. Wieman The trapping of atoms in optical crystals: The quantization of motion and generated nonlinear signals. G. Grynberg Spectroscopy of cold atoms. P. Zoller

Interaction of Proteins with Surfaces. R Wood, discussion leader Theoretical models for protein adsorption. J. Stahlberg Molecular recognition by metal ion complexes and patterned metal-complexing polymers. F. Arnold Fimbriated stationary phases for LC. F. Régnier

Field-Induced Interference. D Bloom, discussion leader Field-induced atom interference effects. M. O. Scully Observation of interference between optical interactions. D. Elliot Tetrahertz quantum beasts in quantum wells P. Planken

Progress in Chiral Separations. F Helfferich. discussion leader Recent advances in chiral sorbent development for LC, GC, SFC, and CE. D. Armstrong Chiral separation of drugs by displacement chromatography. G. Vigh

High-Field Effects. W. Knox, discussion leader Tetrahertz through X-ray generation from high-intensity laser interactions with gases and solids. R. Falcone Tetraherz nonlinear excitations of Rydberg states. P. Bucksbaum Atoms and molecules in high fields. P. Corkum Optical Physics. S. Harris, discussion leader Spin-orbit interaction of a photon in an inhomogeneous medium and berry-chiao phase in multimode fibers. B. Zel'dovich Nonclassical dynamics of molecular vibrational wavepackets. I. Walmsley Nonlinear Applications. D Anderson, discussion leader Spectroscopy from single atoms to information storage. A. Renn

Reactive Polymers, Ion Exchangers, and Adsorbents

Reactive Polymers: Preparation, Properties, and Applications. S. Alexandras, discussion leader Mixed liquid ion exchangers as extradants for metal salts G. Schmuckler Ion selectivities using macrocyclo-bound silica gels R. M. Izatt Changes in the electrical double-layer potential due to diffusion of cations into the hydrated layer at the silica surface. F. Cantwell Recovery of carboxylic acids with functionalized sorbents and extractants. C. J. King Chromatography of Proteins, N H L Wang discussion leader Novel displacement systems for protein purification. S. Cramer Novel adsorbents with thin polymer coatings for bioseparations. K. Unger Protein interaction with hydrophobic surfaces in reversed-phase chromatography. W. S. Hancock Calorimetry in the characterization of stationary phases for biopolymer HPLC. A. Marlon J D. Sherman, discussion leader

August 2 2 - 2 7 Salve Regina University, Newport, Rl C. Horvath, Chair P. A. Yarnell. Vice Chair New Challenges and Opportunities In the Application and Characterization of Ultrapure Water. Y. Egozy, discussion leader Ultrapure water for the semiconductor industry: Analytical problems and solutions. M. K. Balazs New criteria for water purity in biosciences and technology. G. A. O'Neill Ultrapure water for nuclear power plants by mixed-bed ion-exchange: Model predictions and industrial results. G. Foutch Recent Advances in Production of Uitrapure Water. H. Hamann, discussion leader Use of electrodeionization for the production of ultrapure water. G. C. Ganzl Advances in the applications of mixed-bed ion-exchange in the ultrapurification of water. F. M. Cutler Novel Configurations of Adsorbents and Ion Exchangers for Enhancement of Efficiency. R. Albright, discussion leader Effect of sorbent morphology on the performance of separation processes. D. D. Frey A new class of ion-exchange resin beads with short diffusion paths. W. Frie

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Statistics in Chemistry and Chemical Engineering July 2 5 - 3 0 New Hampton School, New Hampton, NH R. W. Hoerl, Chair S. Wold, Vice Chair L. Hare, moderator MARS, nets, PLS, and all that jazz—a data analytic perspective. D. DeVeaux D. Duffy, discussant M. Carey, moderator Statistical and chemical issues in detection and environmental modeling. L. Currie L. Gleser. discussant A. Kalantar, moderator Graphical regression. D. Cook B. Gunter, discussant M. Nemeth, moderator Chemometric application of neural nets for classification and calibration. S. Brown Β Ripley, discussant S. Vardeman, moderator Process monitoring and control system evaluation D. Wardrop and C. Garcia Τ Harris, discussant

D. Steinberg, moderator Resampling in nonparametric modeling. D. Hinkley S. Leurgans, discussant C. Morgan, moderator Computer experiments for sensitivity analysis and prediction applied to atmospheric models. J. Sacks, W. Welch, and K. Bowman J. Flueck, discussant S. Wold, moderator Process optimization by combining RMS and PLS. D. Stevens B. Wise, discussant J. Voelkel, moderator Principles for managing statistical consulting in industry: The example of twin metric process control. D. Marquardt G. Harm, discussant

Three-Dimensional Electron Microscopy of Macromolecules June 2 7 - J u l y 2 New Hampton School, New Hampton, NH T. S. Baker, Chair A. C. Steven, Vice Chair Hybrid Technology: Electrons and X-rays Working Together. E.F.J, van Bruggen, discussion leader Rhinovirus-antibody interactions. T. Smith Complementary EM/X-ray studies of cholera toxin. A. Brisson Late-Breaking Results: Advances in Crystallization, Computation, and Instrumentation. J. Lepault, discussion leader Viruses and Other Macromolecular Assemblies. P. Stewart, discussion leader Dynamics of microtubule assembly/disassembly. E. M. Mandelkow Conformational changes in reoviruses. M. Yeager Centriole structure. S. Fuller After the Ice Age: Noncryogenic Preparation Techniques Revisited. U. Aebi, discussion leader Negative stain revisited. J. Stoops HRSEM of metal-shadowed nuclear pore complexes. T. Allen Decoration contrast on protein molecules. S. Weinkauf Site-Specific Labeling: Cluster Compounds and Other Fiducial Markers. E. Gogol, discussion leader Nanogold labels. J. Hainfeld Immuno- and nanogold labeling of macromolecules. N. Bolsset Identification of epitopes on herpes simplex virus. B. Trus Late-Breaking Applications in Structural Biology. C. Manella, discussion leader Three-Dimensional Reconstructure: New Strategies and Algorithms. M. van Heel, discussion leader Automated processing of helical structure. D. DeRosier SECReT(s) in vitreous water and negative stain. M. Radernacher Automated tomography of macromolecules. W. Baumeister Progress in Image Formation, Acquisition, and Display. J. Langmore, discussion leader Membranes and Their Cytoskeleton. G. Soskinsky, discussion leader Macromolecules of the erythrocyte. R. Josephs Functional states of the acetylcholine receptor. N. Unwin

Conferences • American Industrial Hygiene C o n f e r e n c e a n d E x p o s i t i o n '93. May 1 5 - 2 1 . New Orleans, LA. Contact: American Industrial Hygiene Association, 2700 Prosperity Ave., Suite 250, Fairfax, VA 22031 (703-849-8888; fax 703-207-3561) • 24th Annual S y m p o s i u m of t h e I n t e r n a t i o n a l A s s o c i a t i o n of E n vironmental Analytical Chemist r y . May 1 6 - 1 9 . O t t a w a , C a n a d a . Contact: M. Malaiyandi, CAEC, Chemistry Department, Carleton University, 1255 Colonel By Drive, Ottawa, Canada K1S 5B6 (613-788-3841; fax 613-7883749) • 2nd European Symposium on Analytical Supercritical Fluid Chromatography and Extract i o n . May 2 7 - 2 8 . Riva del G a r d a , Italy. Contact: P. Sandra, I.O.P.M.S. Kennedypark 20, B-8500 Kortrijk, Belgium (32-56-204960; fax 32-56-204859) • 23rd International S y m p o s i u m on Environmental Analytical C h e m i s t r y . J u n e 1 4 - 1 6 . Jekyll Island, GA. Contact: Linda Exum, U. S. EPA, College Station Rd., Athens, GA 30613-7799 (706-543-3145) • 48th Ohio State U n i v e r s i t y Int e r n a t i o n a l S y m p o s i u m o n Molecular Spectroscopy. June 1418. Columbus, OH. Contact: Terry A. Miller, Department of Chemistry, Ohio State University, 120 West 18th Ave., Columbus, OH 43210 (614-292-2569; fax 614-292-1948) • 10th Montreaux S y m p o s i u m o n LC/MS, SFC/MS, CE/MS, a n d M S / M S . J u l y 2 1 - 2 3 . I t h a c a , NY. Contact: LC/MS Symposium, Cornell Conference Services, Box 3, Robert Purcell Union, Ithaca, NY 14853 (607-2556290; fax 607-255-4722) M 107th AOAC International Annual Meeting and Exposition. J u l y 2 6 - 2 9 . Washington, DC. Contact: Margaret Ridgell, AOAC International, 2200 Wilson Blvd., Suite 400, Arlington, VA 22201-3301 (703-522-3032; fax 703-522-5468) • 4th Workshop on Chemistry a n d F a t e of M o d e r n P e s t i c i d e s a n d R e l a t e d P o l l u t a n t s . Sept. 8 - 1 0 . Prague, Czechoslovakia. Contact: International Association of Environmental Analytical Chemistry, M. FreiHàusler, P.O. Box 46, CH-4123 Allschwil 2, Switzerland (41 61 481 2789) • 4 7 t h A n n u a l M e e t i n g of t h e Gulf Coast C o n f e r e n c e . Sept. 1 3 17. Galveston, TX. Contact: Walter Dunlap, Texaco Chemical Co., P.O. Box 15730, Austin, TX 78761 (512-4830161) • E u r o s e n s o r s VII. Sept. 2 6 - 2 9 . Budapest, Hungary. Contact: Techni-

cal University ofBudapest, Department of Atomic Physics, Budafoki ut 8, H-1.111 Budapest, Hungary (fax 361-185-3230) • 10th A s i l o m a r C o n f e r e n c e o n MS. Oct. 3 - 7 . Estes Park, CO. Contact: Laszlo Tokes, Syntex Discovery Research, 3401 HillviewAve., Palo Alto, CA 94304 (415-855-5713; fax 415-3547363) • O p t i c a l S e n s i n g for E n v i r o n m e n t a l M o n i t o r i n g . Oct. 1 1 - 1 5 . Atlanta, GA. Contact: Adrianne Olsakovsky, Air & Waste Management Association, P.O. Box 2861, Pittsburgh, PA 15230 (412-232-3444; fax 412-2323450) • 11th International S y m p o s i u m on Laboratory Automation and R o b o t i c s . Oct. 1 7 - 2 0 . Boston, MA. Contact: Christine O'Neil, Zymark Corporation, Zymark Center, Hopkinton, MA 01748 (508-435-9500; fax 508-4353439)

Short Courses and Workshops • E l e c t r o s p r a y I o n i z a t i o n MS. April 2 3 - 2 4 . Baltimore, MD. Contact: ASMS, 815 Don Gaspar, Santa Fe, NM 87501 (505-9894517) M F F F Workshop VI. J u n e 11-12. S a l t L a k e City, U T . Contact: Julie Westwood, FFFRC, Department of Chemistry, University of Utah, Salt Lake City, UT 84112 (801-581-5419; fax 801-5814353) • P r i n c i p l e s a n d Applications of Chemical Sensors. June 21-24. B a v a r i a , G e r m a n y . Contact: Karin Potje-Kamloth, Universitàt der Bundeswehr Munchen, Fakultatfur Elektrotechnik, Institut fur Physick, WernerHeisenberg-Weg 39, W-8014 Neubiberg, Germany (49-89-6004-4041; fax 49-896004-3560) • Advanced European Training Course in Liquid Chromatograp h y a n d Capillary E l e c t r o p h o r e sis. Sept. 1 4 - 1 7 . Montpellier, F r a n c e . Contact: H. Fabre or M. D. Blanchin, Laboratoire de Chimie Analytique, Faculté de Pharmacie, 34060 Montpellier Cedex 1, France (33-67-6354-32; fax 33-67-61-16-22) • Chiral Separations Short C o u r s e a n d W o r k s h o p . Oct. 1 1 13. St. Louis, MO. Contact: D. W. Armstrong, University of Missouri-Rolla, 142 Schrenk Hall, Rolla, MO 65401 (3143414420; fax 314-341-6033)

These events are newly listed in the JOURNAL. See back issues for other events of interest.

ANALYTICAL CHEMISTRY, VOL. 65, NO. 8, APRIL 15, 1993 · 401 A