14N ANALYST, JANUARY 1993, VOL. 118 Future Issues will lnclude- Flow-through (Bio)chemical Sensors- Miguel Valcarcel and Maria Dolores Luque de Castro Flow Injection Chemiluminometric Determination of Epinephrine, Nor- epinephrine, Dopamine and L-Dopa- Nikolaos T. Deftereos, Antony C. Calokerinos and Constantinos E. Efstathiou Dataprocessing by Neural Networks in Quantitative Chemical Analysis-M. BOS, A. Bos and W. E. van der Linden Novel Electrochemical Device for the Detection of Cholesterol or Glucose- John F. Cassidy, Cathriona Clinton, William Breen, Robert Foster and Eilish 0 'Donoghue Novel Usage of Synthetic Detergent to Partition Protein Mixture-Wakako Tsuzuki, Hanae Kasumimoto and Shouichi Kobayashi Isomeric Characterization of Poly- chlorinated Biphenyls Using Gas Chro- matography Fourier Transform Infrared-Gas Chromatography Mass Spectrometry-Doyle M.Hembree, Jr., Norman R. Smyrl, Willard E. Davis and David M. Williams Determination of Formic Acid Vapo-ur Using Piezoelectric Crystals With 4-Ethyl, 3-Thiosemicarbazide and 2,6- D i ace th y lpyridine Coatings-J. A. Munoz Leyva, J. L. Hidalgo Hidalgo de Cisneros, D Garcia, Gomez de Barreda and A. J. Fraidias Becerra Oxazole-based Tagging Reagents for Analysis of Secondary Amines and Thiols by Liquid Chromatography With Fluorescence Detection-Susan M. Lunte, Toshimasa Toyo'oka, Hitesh P. Chokshi, Robert G. Carlson and Richard S. Givens Agarose Gel Electrophoresis System for the Separation of Antibiotics Used in Animal Agricul ture-Michael J. Salva- tore, Stanley E. Katz and Ilya Feygin High-performance Liquid Chromato- graphic Determination of 5-Hydroxyin- doles by Post-col um n F1 uorescence Derivatization-Masatoshi Yamaguchi, Junichi Ishida and Ryuji Iizuka Separation of Chromium and Nickel Using Extraction Chromatography.Application to the Analysis of Alloys- Ricardo 0. Crubellati and Ariel Led e s m a Efficacy of Robust Anova for the Inter- pretation of Data from Collaborative Trials-Michael Thompson, Bart Mer- tens and Margalith Kessler Determination of Non-ionic Surfactants in Waste Water by Direct Extraction With Fourier Transform Infrared Spec- troscopic Detection-B. E. Andrew Direct Determination of Cadmium in Sea-water by Electrothermal Atomic Absorption Spectrometry with Sodium Hydroxide as a Chemical Modifier- Chi-ren Lan Micelle-mediated Methodology for the Preconcentration of Uranium Prior to its Determination by Flow lnjection- Bernard0 Moreno Cordero, Esther Fer- nadez Laespada and Josk Luis PCrez Pavon Protamine-coated Silica Gel as Packing Material for High-performance Liquid Chromatography of Carbohydrates- Shuji Yamauchi, Noriyuki Nimura and Toshio Kinoshita