JASPE2 6(8) 587-678 283R-340R ( 1 99 1 ) December 199 1 Journal of Analytical Atomic Spectrometry I n c I u d i n g Atom ic S pect ro m e t ry U pd at es CONTENTS NEWS AND VIEWS 587 Conference Report 588 Conference and Meetings 589 Courses 589 Papers in Future Issues PAPERS 591 601 605 609 61 5 623 627 631 637 643 647 653 661 669 673 675 677 Matrix Interferences From Methacrylic Acid Solutions in Inductively Coupled Plasma Mass Spectrometry-J Marshall J Franks High Speed Photographic Study of Plasma Fluctuations and Intact Aerosol Particles or Droplets in Inductively Coupled Plasma Mass Spectrometry-Royce K Winge J S Crain R S Houk Minimization of Non-spectroscopic Matrix Interferences for the Determination of Trace Elements in Fusion Samples by Flow Injection Inductively Coupled Plasma Mass Spectrometry-Jiansheng Wang E Hywel Evans Joseph A Caruso Determination of Uranium and Thorium in Aluminium With Flow Injection and Laser Ablation Inductively Coupled Plasma Mass Spectrometry-Peter van de Weijer Peter J M G.Millings Wilhelmina L. M Baeten Wim J M de Laat Flow Injection On-line Separation and Preconcentration for Electrothermal Atomic Absorption Spectrometry. Part 2. Determination of Ultra-trace Amounts of Cobalt in Water-Michael Sperling Xuefeng Yin Bernhard Welz Slurry Sampling and Fluorination-Electrothermal vaporization Inductively Coupled Plasma Atomic Emission Spectrometry for the Direct Determination of Molybdenum in Food-Hu Bin Jiang Zucheng Zeng Yun'e Cold Vapour Atomic Absorption Method for the Determination of Mercury in Iron(iii) Oxide and Titanium Oxide Pigments Using Slurry Sample Introduction-lgnacio Lopez Garcia Maria Jeslis Vizcaino Martinez Manuel Hernandez Cordoba Tandem Sources Using Electrothermal Atomizers Analytical Capabilities and Limitations-Heinz Falk Determination of Geographic Origin of Agricultural Products by Multivariate Analysis of Trace Element Composition-Robert S Schwartz Le T Hecking Immobilized Alga as a Reagent for Preconcentration in Trace Element Atomic Absorption Spectrometry-Hayat A M Elmahadi.Gillian M Greenway Determination of Zinc in Human Milk by Electrothermal Atomic Absorption Spectrometry-Josiane Arnaud Alain Favier Josette Alary Direct Determination of Cadmium and Lead in Geological and Plant Materials by Electrothemal Atomic Absorption Spectrometry-Franci Dolingek Janez Stupar Vinko VrEaj Determination of Selenium by Electrothermal Atomic Absorption Spectrometry.Part 1 . Chemical Modifiers-Hana DoEekalova Bohumil DoEekal Josef Komarek Ivan Novotny Combination of Chemical Modifiers and Graphite Tube Pre-treatment to Determine Boron by Electrothermal Atomic Absorption Spectrometry-Milagros Luguera Yolanda Madrid Carmen Camara Effect of the Matrix on the Determination of Some Impurities in Europium(iii) Oxide by Flame and Electrothermal Atomic Absorption Spectrometry-Vera Spevackova Karel Kratzer Ma'ja Cejchanova Sulphur Contamination From Synthetic Materials in the Argon Gas Supply in Inductively Coupled Plasma Atomic Emission Spectrometry-A P M de Win CUMULATIVE AUTHOR INDEX I NTER-LABORATORY NOTE ~ ATOMIC SPECTROMETRY 283R Industrial Analysis Metals Chemicals and Advanced Materials-John Marshall UPDATE John Carroll James S.Crighton 323R References Typeset by Burgess & Son (Abingdon) Ltd (1 Printed in Great Britain by PAGE BRos Page Bros NorwichSTANDARD 7YPE S. 81. Jm JUNIP 7 Potter Street Harlow Circle 001 for further information . Atomic Spectroscopy Group and North East Region of The Royal Society of Chemistry Productivity Enhancement in Atomic Spectroscopy A one day meeting to be held at York University York UK Wednesday February 5,1992 The speakers will include SJ. Haswell M.H. Ramse y C.L.R. Barnard Data Handling Connection Collection and Control G. Hibberd M. Ingham A.N. Eaton J. Marshall The Development of a Continuous Flow Microwave Digestion Method for On-line Sample Preparation Appropriate Precision Matching Analytical Precision Specifications to the Particular Application AA or ICP-Which to Choose? Operational and Quality Control Procedures in a High- ICP-MS-Variations on a Theme Expert Systems for Improving Eficiency in Atomic throughput XRF Laboratory Spectroscopy For further details contact Dr. J. Marshall ICI plc. Wilton Materials Research Centre Room D125 P.O. Box 90 Wilton Middlesbrough Cleveland TS6 8JE UK. Telephone 0642 432029; Fax 0642 437277.