64N ANALYST, MAY 1993, VOL. 118 Future Issues will lnclude- Preliminary Characterization of Inductively Coupled Plasma Mass Spectrometry With Flow Injection into a Gaseous (Air) Carrier-Diane Beauchemin Determination of Anatoxin-a and Homoanatoxin in Blue- Green Algal Extracts by High-performance Liquid Chroma- tography and Gas Chromatography-Mass Spectrometry- Anastasia Zotou, Terry M. Jefferies, Paul A. Brough and Timothy Gallagher From Flow Injection to Sequential Injection: Comparison of Methodologies and Selection of Liquid Drives-Ari Ivaska and Jaromir RiZi2ka Calculation of the Confidence Range in Order to Obtain a Linear Calibration Graph in Stable Isotope Dilution Mass Spectrometry: Application to Reference Methods and Phar- macological Studies-Jean-Frangois Sabot and Henri Pinatel Microcomputer-aided Titrimetric Determination of Bromine- containing Active Ingredients in Some Drug Formulations- Biljana F.' Abramovic, KornCIia S.Horvath and Ferenc F. Gaal Spectrophotometric Determination of Lead in Tap Water With 5,10,15,20-Tetra( 4-N-sulfoe thy1pyridinium)porphyrin Using Merging Zones Flow Injection-Jeffery A. Schneider and James F. Hornig Bioluminescent Flow-sensing Device for the Determination of Magnesium(I1)-Stefan0 Girotti, Elida Ferri, Severino Ghini, Pave1 Rauch, Giacomo Carrea, Roberto Bovara, Aldo Roda, Maria Antonietta Giosui?, Pier0 Masotti and Gianni Gangemi Recent Strategies in Automated Reaction Rate Based Deter- minations-Manuel Silva Analysis of Mixtures of Polycyclic Aromatic Hydrocarbons in Sea-water by Synchronous Fluorescence Spectrometry in Organized Media- J.J. Santana Rodriguez, J. Hernandez Garcia, M. M. Bernal Suarez and A. Bermejo Martin-Lazaro Multicomponent Determination of Flavour Enhancers in Food Preparations by Partial Least Squares and Principal Component Regression Modelling of Spectrophotometric Data-Isabel Duran-Meras, Arsenio Munoz de la Pena, Anunciacih Espinosa-Mansilla and Francisco Salinas Partial Least Squares Resolution of Multianalyte Flow Injec- tion Data-Paul J. Worsfold, Paul MacLaurin, Philip Norman and Michael Crane Determination of Carboxylic Acids by High-performance Liquid Chromatography With 2-( 2,3-Anthracenedicarbox- imido)ethyl Trifluoromethanesulfonate as a Highly Sensitive Fluorescent Labelling Reagent-Hiroshi Meguro, Kazuaki Akasaka and Hiroshi Ohrui Development of a Highly Sensitive Fluorescence Reaction Detection System for Liquid Chromatographic Analysis of Reducing Carbohydrates-Shuji Yamauchi, Chie Nakai, Noriyuki Nimura, Toshio Kinoshita and Toshihiko Hanai Photobleaching of Methylene Blue in Continuous Wave Thermal Lens Spectrometry-R. D. Snook and R. D. Lowe Attomole Detection of Nitroaromatic Vapours Using Res- onance Enhanced Multiphoton Ionization Mass Spec- trometry-Alastair Clark, Kenneth W. D. Ledingham, Archibald Marshall, Joseph Sander and Ravi P. Singhal Typification of Alcoholic Distillates by Multivariate Tech- niques Using Data From Chromatographic Analysis-M. C. Ortiz, J. A. Saez and J. L6pez Palacios