Analytical Sciences

Laser Electrochemical Detection Technique in a Flow System

Hydrogen Effect on the ¹³C Value of CO₂ Measured by Mass Spectrometry with Electron-lmpact lonization

Determination of Nickel, Cobalt, Copper, Thorium and Uranium in High-Purity Zinc Metal by ICP-MS with On-Line Matrix Separation

"One Drop" Flame Atomic Absorption Spectrometric Determination of Lead Combined with Solvent Extraction after Preconcentration with Calcium Fluoride

Chromatographic Separation of Niobium and Tantalum in a Hydrofluoric Acid-Hydrochloric Acid System with Macroporous Polyacrylate Resin Beads

Cation-Exchange Chromatographic Separation of Antimony(III) with Hydrobromic Acid in Organic Solvents

Flotation-Spectrophotometric Determination of Trace Iron(III) in Natural Water Samples with 2-Carboethoxy-1,3-indandione Sodium Salt

Distribution Behavior of Metal 4-(2-Thienyl)-4-thioxo-1,1,1- trifluoro-2-butanonates in Reversed-Phase High-Performance Liquid Chromatography

Preparation of Iron(II) by Electrolytic Reduction and Extraction with 4,4,4-Trifluoro-1-(2-thienyl)-1,3-butanedione into Various Organic Solvents

Structures and Properties of Cobalt(III) Complexes of Ligands Having the1,4,8,11-Tetraazacyclotetradecane-5,7-dione Moiety

Trend of Stabilities of Adducts of 4,4,4-Trifluoro-1-(2-thienyl)-1,3-butanedionates with Phenylpyridines over Lanthanoid Series

Stability of Metal(ll)-1,1,1-Trifluoro-4-mercapto-4- (2-thienyl)-3-butene-2-one-Nitrogeneous Base Ternary Complex on the Basis of HSAB Principle

High-Performance Liquid Chromatographic Analysis of Trace Amounts of Carboxylic Acids in Environmental Water after Preconcentration with a Chemically-Modified Sephadex G10

Precolumn Deproteinization Method of Human Plasma Using a Hydroxyapatite Cartridge for High-Performance Liquid Chromatographic Amino Acid Analysis

A Continuous Flow System for Sensitive Urushiol Detection Using a New Chemiluminescent Reaction

Radioimmunoassay for 4-[(5,6,7,8-Tetrahydro- 5,5,8,8-tetramethyl-2-naphthyl)carbamoyl]benzoic Acid in Dog Plasma

Simultaneous Fluorometric Determination of Conjugated Fetal Bile Acids in Urine of Newborns by High-Performance Liquid Chromatography

Fluorescence Characteristics of Methoxycoumarins as Novel Fluorophores

2-(5-Hydrazinocarbonyl-2-furyl)-5,6-dimethoxybenzothiazole as a Precolumn Fluorescence Derivatization Reagent for Carboxylic Acids in High-Performance Liquid Chromatography and Its Application to the Assay of Fatty Acids in Human Serum

Simulation of Extraction Process in Dual-Flow Countercurrent Extraction

Determination of the lon-Pair Formation Constants of Aliphatic Amines with Methyl Orange

Determination of Impurities in High-Purity Selenium by Inductively Coupled Plasma Mass Spectrometry after Matrix Separation with Thiourea

Complex Formation of Oxonium lon with 18-Crown-6 and 24-Crown-8 Derivatives in a Nitrobenzene Solution Saturated with Water

Red Shift of the Soret Band of Anionic Water-Soluble Porphyrins Induced by Polyelectrolytes and Its Application to the Colloidal Titration and Spectrophotometric Determination of Polyelectrolytes

Rapid Measurement of Cholinesterase Activity Using an Amperometric Enzyme Electrode Based on Lipid-Modified Choline Oxidase

Enhancement of the Sensitivity and Resolution by Flow-Counterbalanced Capillary Electrophoresis

Crystal Structure of the Complex of (3-lndolyl)acetic Acid and Picric Acid

International Trace Analysis Symposium-ITAS '94

On Compiling the Papers Presented in lTAS '94 as a Special Issue

Trace Analysis Methods for Actinides in Aqueous Systems

Separation and Recovery of Gold, Platinum and Palladium by a Trioctylamine Liquid Membrane

Ultra-Trace Determination of Phosphate lon Based on Filtration-Dissolution and Flow-through Spectrophotometric Measurement

Simultaneous Measurement System for an Adsorbed Substance on a Glass Slab Optical Waveguide and a Dissolved Substance in Liquid-Phase by Visible Absorption Spectrometry

Supercritical Fluid Extraction of Trace Metals from Solid and Liquid Materials for Analytical Applications

Role of Amino Thiols as Radical Quenchers in Delayed Chemiluminescence of Luminol Catalyzedby Horseradish Peroxidase

Photophysical Investigation of Energy Transfer Luminescence of Lanthanide Chelates with Aromatic Polyaminocarboxylate Ligands in Aqueous Solutions

Application of Fibrous Materials Filled with Chelating Sorbents to Metal Preconcentration in an On-Line Water Analysis

Utilization of Micelle-Mimetic Intramolecular Ionene Aggregates as the Mobile Phase in Pseudophase Thin-Layer Liquid Chromatography