JASPEZ 6(3) 195-248,69R - 136R April 1991 Journal of Analytical Atomic Spectrometry Including Atomic Spectrometry Updates CONTENTS NEWS AND VIEWS 195 195 196 Conferences and Meetings 198 Course 198 Papers in Future Issues Ongoing Activities on New Reference Materials White Clover-Sergio Caroli The Heinz-Zumkley Prize for 1991 PAPERS 199 205 21 1 215 22 1 225 233 239 247 Optimization of the Mass Scanning Rate for the Determination of Lead Isotope Ratios Using an Inductively Coupled Plasma Mass Spectrometer-Naoki Furuta Application of a High Resolution Inductively Coupled Plasma Mass Spectrometer t o the Measurement of Long-lived Radionuclides-Chang-Kyu Kim Riki Seki Shigemitsu Morita Shin-ichi Yamasaki Akito Tsumura Yuichi Takaku Yasuhito Igarashi Masayoshi Yamamoto Direct Solid Sampling in Capacitively Coupled Microwave Plasma Atomic Emission Spectrometry-Abdalla H.Ah Kin C. Ng James D. Winefordner Evaluation of a 13.56 MHz Capacitively Coupled Plasma as a Detector for Gas Chromatographic Determination of Organotin Compounds-Degui Huang Michael W. Blades Fluorination and Volatilization of Refractory Elements from a Graphite Furnace for Sample Introduction into an Inductively Coupled Plasma Using a Polytetrafluoroethylene Slurry-Min Huang Zucheng Jiang Yun'e Zeng High-performance Liquid Chromatography-Atomic Absorption Spectrometry Interface for the Determination of Selenoniocholine and Trimethylselenonium Cations Application t o Human Urine-Jean-Simon Blais Alexis Huyghues-Despointes Georges Marie Momplaisir William D Marshall Flow Injection Flame Atomic Spectrometric Determination of Aluminium Iron Calcium Magnesium Sodium and Potassium in Ceramic Material by On-line Dilution in a Stirred Chamber-Vincente Carbonell Angel Sanz Amparo Salvador Miguel de la Guardia Optimization of Cold Vapour Atomic Absorption Spectrometric Determination of Mercury With and Without Amalgamation by Subsequent Use of Complete and Fractional Factorial Designs With Univariate and Modified Simplex Methods-George A. Zachariadis John A.Stratis CUMULATIVE AUTHOR INDEX ATOMIC SPECTROMETRY UPDATE 69R Clinical and Biological Materials Foods and Beverages-Simon Branch Helen M. Crews David J. Halls Andrew Taylor 109R ReferencesSTANDARD WPE S. &. J. JUNIPER & Co. 7 Potter Street Harlow Essex. Tel 0279 22456 PERKIN-ELMER TYPE Fax 0279 438095 Circle 001 for further information ROYAL SO Pesticide Outlook A review and news journal of worldwide developments on pesticides Pesticide Outlook is a new journal from the Royal Society of Chemistry which complements its growing range of agrochemical publications and services.It offers a unique blend of news and reviews letters and in-depth company/ organisation profiles forthcoming events and detailed features plus much more . . .. The contrast of serious well written articles by acknowledged experts with lighter material creates a varied and interesting read - essential for all those wishing to keep up-to-date with developments on all aspects of the pesticides scene. It has an attractive magazine format which is well designed clearly laid out and extremely easy to read. Published Quarterly 1991 Subscription (Volume 2) EC f57.00 USA $1 20.00 Rest of World f 62.00 ISSN 0956-1 250 Descriptive leaflet available on request! 1 ROYAL ~ SOCIETY OF ' CHEMISTRY Information 1 Services To Order Please write to the Royal Society of Chemistry Turpin Transactions Ltd Blackhorse Road Letchworth Herts SG6 1 HN. UK. or telephone (0462) 672555 quoting your credit card details. We can now accept AccessNisalMasterCard/Eurocard. Turpin Transactions Ltd distributors is wholly owned by the Royal Society of Chemistry. For information on other books and journals please write to the Royal Society of Chemistry Sales and Promotion Department Thomas Graham House Science Park Milton Road Cambridge CB4 4WF. UK. RSC Members should obtain members prices and order from The Membership Affairs Department at the Cambridge address above. Circle 002 for further information