FUTURE ISSUES WILL INCLUDE- Optimization of Operating Conditions for Precise Measurement of Zirconium and Hafnium Isotope Ratios by Induc- tively Coupled Plasma Mass Spec- trometry (ICP-MS)-Qianli Xie and R. Kerrich Solid Sampling Electrothermal Vaporiza- tion Inductively Coupled Plasma Mass Spectrometry for the Determination of Arsenic in Standard Reference Materials of Plant Origin-Frank Vanhaecke Sylvie Boonen Luc Moens and Richard Dams Laser Ablation Sampling with Indus- tively Coupled Plasma Atomic Emission Spectrometry for the Analysis of Proto- typic Glasses-Richard E. RUSSO W. T. Chan M. F. Bryant and W. F. Kinard Trace Enrichment and Determination of Gold by Flow Injection Inductively Coupled Plasma Spectrometry Part 11. Inductively Coupled Plasma Mass Spec- trometry-M. Gomez and Cameron W.McLeod Continuous Hydride Generation Low Pressure Microwave Induced Plasma Atomic Emission Spectrometry for the Determination of Arsenic Antimony and Selenium-Florian Lunzer Rosario Per- eiro-Garcia Nerea Bordel-Garcia and Alfred0 Sanz-Medel Interference-Free Determination of Sel- enium@) at Environmental Levels by Capillary Gas Chromatography Micro- wave Induced Plasma Atomic Emission Spectrometry after Volatilization with Sodium Tetraethylborate-M. B. de la Calle Guntinas Ryszard Lobinski and Freddy C. Adams Spectrometer System for Simultaneous Multi-element Electrothermal Atomiza- tion Atomic Absorption Spectroscopy Using Line Sources and Zeeman Effect Background Correction-Bernard Rad- ziuk G. Rodel H. Stenz H. Becker-Ross and S. Florek Determination of Organometallic Species by Gas Chromatography Induc- tively Coupled Plasma Mass Spec- trometry-Andreas Prange and Jantzen Eckard Determination of Beryllium in Drinking and Waste Water by Tungsten-Furnace Atomic Absorption Spectrometry- Tomas Cernohorsky and Stan Kotrly Direct Determination of Samarium Neodymium Ratio in Geological Mate- rials by ICP-Quadrupole Mass Spec- trometry with Cryogenic Desolva- tion Comparison with Isotope Dilution Thermal Ionization Mass Spectrometry -Christian Pin and Philippe Telouk 14 N Journal of Analytical Atomic Spectrometry January 1995 Vol. 10