Analyst, March 1996, Vol. 121 39N Future Issues Will Include Mediaeval Stained Glasses of Pisa Cathedral (Italy): Their Composition and Alteration Product-Andrea Orlando, Filippo Olmi, Gloria Vaggelli, Mauro Bacci Application of Partial Least Squares as an Alternative to Single Wavelength Molar Absorption Coefficients for Predicting Concentrations. Application to Electronic Absorption Spec- trometry of Chlorophyll-alpha-Y. Fukunaga, Pedro W. Araujo, Dragan A. Cirovic Influence of the Method of Calculation of Noise Thresholds on Wavelength Selection in Windows Factor Analysis of Diode- array High-performance Liquid Chromatography. Application to Chlorophyll Degradation Mixtures-R. G. Brereton, Abdallah K. Elbergali, Ali Rahmani Flow Dissolution of Diphenylcarbazide for Chromium(v1) Determination-Osvaldo E.Troccoli, Francisco J. Andrade, Mabel B. Tudino Thin Plastic Film Colorimetric Sensors for Carbon Dioxide: Effect of Plasticizer on Response-Andrew Mills, Lela Monaf Autocatalytic Decomposition of Cobalt Complex as an In- dicator System for the Determination of Trace Cobalt and Infectors-Takao Yotsuyanagi, Masatoshi Endo, Masahito Ishihara Determination of Impurity Elements in Graphite by Acid Decomposition-Inductively Coupled Plasma Atomic Emission Spectrometry-Kazuo Watanabe, Jun Inagawa Determination of Cadmium, Copper and Lead in Cervine Liver and Kidney by Slurry Injection Electrothermal Atomic Absorp- tion Spectrometry-William D. Marshall, Yanxi Tan, Jean- Simon Blais Electrochemical Reduction at Mercury Electrode and Differ- ential-pulse Polarographic Determination of Dibucaine-M.San M. Fernandez-Marcote, M. Callejon Mochon, J. C. Jimenez Sanchez, A. Guiraum Perez Organic Microheterogeneous Systems in Kinetic Analysis. Non-covalent Polymeric Assemblies. A Review-Dolores Perez-Bendito, Maria Lopez Carreto, S. Rubio Conditions of Solid-phase Extraction of Agricultural Chemicals in Waters by Using the Partition Coefficient of Octanol- Water-Motoshi Nakamura, Masatoshi Nakamura, Shinkichi Yamada Thermal Lens Determination of Vanadium(v) and its Activators by Reaction of Oxidation on Aniline by Bromate Ions- Michael A. Proskurnin, Nataliya V. Osipova, Vera V. Kusnetsova, E. K. Ivanova, A. G. Abroskin Future Prospects for the Analysis of Complex Biological Systems Using Microcolumn Liquid Chromatography-Electro- spray Tandem Mass Spectrometry-John R.Yates, Ashley L. McCormack, Andrew J. Link, David Schieltz, Jimmy Eng, Lara Hays Artificial Neural Networks and Partial Least Squares Regres- sion for Pseudo-first-order With Respect to the Reagent Multicomponent Kinetic-Spectrophotometric Determina- tions-Marcel0 Blanco, J. Coello, Hortensia Iturriaga, Santiago Maspoch, Miguel Redon, Nuria Villegas Automation of a System for Titrimetric Measurements. Cata- lytic Thermometric Titrations of Organic Bases-Biljana F. Abramovic, Sanja D. Tepavcevic, Borislav K. Abramovic, Ferenc F. Gaal Proton Nuclear Magnetic Resonance Determination of Hexam- ethylenetetramine in the Presence of Formaldehyde and Urine-Bruno Jaselskis, Gary L. Madsen, David S. Crumrine Influence of Pesticide-Soil Interactions on the Recovery of Pesticides Using Supercritical Fluid Extraction-John R.Dean, Ian J. Barnabas, Susan P. Owen Flow Injection Fourier Transform Infrared Determination of Paracetamol in Pharmaceuticals-Miguel de la Guardia, Zouhair Bouhsain, S. Garrigues Kinetic Separation of Amperometric Sensor Responses- Robert J. Forster Moisture-activated, Electrically Conducting Bioadhesive Inter- faces for Biomedical Sensor Applications-A. D. Woolfson Characterization of Carbon Paste Electrodes In Vitro for Simultaneous Amperometric Measurement of Changes in Oxygen and Ascorbic Acid Concentrations In Vivo-Marianne Fillenz, John P. Lowry, M. G. Boutelle, Robert D. O'Neill Detection of Quinine and its Metabolites in Horse Urine by Gas Chromatography-Mass Spectrometry-R. G.Brereton, Cevdet Demir, M. C. Dumasia Chronoamperometric Method Used to Study the Effect of Lanthanide Ions on the Initial Kinetics of Glutamate Dehy- drogenase-Xiao Xia Gao, Wen Kuan Xin Novel Approach to Speciation of Aluminium by Employing Fast Protein Cation-exchange Liquid Chromatography-In- ductively Coupled Plasma Atomic Emission Spectrometry- Bojan Mitrovic, Radmila Milacic, Boris Pihlar Solvent Ex trac tion-S equen tial Injection Without Segmentation and Phase Separation Based on the Wetting Film Formed on a Teflon Tube Wall-Gary D. Christian, Yongyi Luo, Rashed Al-Othman, Jaromir Ruzicka COPIES OF CITED ARTICLES The Royal Society of Chemistry Library can usually supply copies of cited articles. For further details contact: The Library, Royal Society of Chemistry, Burlington House, Piccadilly, London WlV OBN, UK. Tel: +44 (0)171-437 8656. 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