Sample preparation for XRF-AA-ICP-CHEM.
BRIEFS
To BiS! or not to BiS! That is t h e question!
claisse /-'LUXER' liiSi
The most sophisticated automatic microprocessor controlled fusion apparatus that... — processes almost all kinds of samples — prepares glass disks and solutions — makes six samples at one time — can be modified to make 100 solutions per hour — uses propane or butane, no oxygen. Most competitive pricing. With sale, free training trip to Quebec City.
Call or write to the most experienced people on fusion for information.
corporation scientifique claisse inc.
2522, chemin Sainle-Foy Sainte-Foy (Québec) Canada G1V 1T5 Tel: (418) 656-6453 Fax:(418)656-1169 Telex: 051-31731
The First and Finest in Fusion CIRCLE 22 ON READER SERVICE CARD
Choosing a graduate school? Need to know who's doing research critical to yours?
The ACS Directory of Graduate Research New edition!
All the information you \^/\^Γ/ need on chemical research and researchers at univer1436 pages ( 1989) sities in the U.S. and Canada S*b nd . . . in a single source. *£&&?*" • Contains a wealth of facts on 683 academic departments, 11,938 faculty members, and 68,276 publication citations.
Fluorescence Detection in Capillary Zone Electrophoresis Using a Charge-Coupled Device with Time-Delayed Integration 496 The ability to differentiate a species based on its fluores cence emission and migration rate is demonstrated for fluo rescein and sulforhodamine 101. The detection limits for fluorescein isothiocyanate (FITC) and FITC-amino acids are in the 10"20 mol range. J. V. Sweedler, J. B. Shear, H. A. Fishman, and R. N. Zare*, Department of Chemistry, Stanford University, Stanford, CA 94305 and R. H. Scheller, Howard Hughes Medical Institute, Depart ment of Molecular and Cellular Physiology, Stanford University, Stanford, CA 94305 Mechanisms of Palladium-Induced Stabilization of Arsenic in Electrothermal Atomization Atomic Absorption Spectroscopy 503 Gaseous species generated by graphite furnaces are analyzed in real time by MS. Free arsenic is generated by desorption resulting from dissociative adsorption of AsO and/or As2 on active sites. Palladium stabilizes arsenic atomization by forming a solid solution with it. David L. Styris* and Laurie J. Prell, Pacific Northwest Labora tory, P.O. Box 999, Richland, WA 99352 and David A. Redfield, Department of Chemistry, Northwest Nazarene College, Nampa, ID 83651 Mechanisms of Selenium Vaporization with Palladium Modifiers Using Electrothermal Atomization and Mass Spectrometric Detection 508 Gas-phase selenium species formed with and without a pal ladium modifier in graphite tube and on graphite flat at omizers operated in vacuo and in graphite tube atomizers at atmospheric pressure are analyzed using various mass spec trometric systems. David L. Styris*, Laurie J. Prell, and David A. Redfield, Pacific Northwest Laboratory, P.O. Box 999, Richland, WA 99352 and James A. Holcombe, Dean A. Bass, and Vahid Majidi, Depart ment of Chemistry, The University of Texas, Austin, TX 78712
Correspondence Electrochemical Formation of High Surface Area Carbon Fibers 517 Greg M. Swain and Theodore Kuwana*, Department of Chemis try and the Center for Bioanalytical Research, The University of Kansas, Lawrence, KS 66046
Technical Notes
• Includes listings for chemistry, chemical engineering, pharmaceutical/medicinal chemistry, clinical chemistry, and polymer science.
Determination of Vanadium in Seawater by Inductively Coupled Plasma Atomic Emission Spectrometry Using Chelating Resin Column Preconcentration 520
• Lists universities with names and biographical information for all faculty members, their areas of specialization, titles of papers published in the last two years, and telephone numbers, FAX numbers, and computer addresses.
Virginie Dupont, Yves Auger*, Catherine Jeandel, and Michel Wartel, Analytical and Marine Chemistry, C8, University of Lille, 59655 Villeneuve D'Ascq Cedex, France
Call tollfree (800) 227-5558 and charge your credit card In Washington, DC, call 872-4363. Or orderfrom; American Chemical Society, Distribution Office Dept 705, P.O. Box 57136, West End Station, Washington, DC 20037. w 264 A • ANALYTICAL CHEMISTRY, VOL. 63, NO. 5, MARCH 1, 1991