1. Electrospray Mass Spectrometry: Variation of Standard Deviation of Experimentally Determined Molecular Weights with Average Charge Number

   • Minoru Sakairi
   • Alfred L. Yergey

   Original Papers 11 December 1991 Pages: 835 - 837

2. Analyte Desorption from Radio Frequency Heated Solid Support in Mass Spectrometry

   • Arabinda Bhattacharya

   Original Papers 11 December 1991 Pages: 839 - 842

3. Analyses of Carbon-13 Nuclear Magnetic Resonance Spectra of Isopropyldibenzofurans and Their Structural Determinations

   • Genki Takeuchi
   • Hiroshi Okazaki
   • Yoshio Kosugi

   Original Papers 11 December 1991 Pages: 843 - 848

4. Sulfur-33 Nuclear Magnetic Resonance Spectra for Sulfates

   • Yoshio Kosugi
   • Hiroshi Okazaki

   Original Papers 11 December 1991 Pages: 849 - 851

5. Comparative Study on the Potentiometric Responses between a Valinomycin-Based Bilayer Lipid Membrane and a Solvent Polymeric Membrane

   • Hirotsugu Minami
   • Naoko Sato
   • Yoshio Umezawa

   Original Papers 11 December 1991 Pages: 853 - 862

6. Evaluation of Diode-Laser-Based Indirect Fluorometric Detection for High-Performance Liquid Chromatography

   • Steven J. Lehotay
   • Andrea M. Pless
   • James D. Winefordner

   Original Papers 11 December 1991 Pages: 863 - 871

7. Sensitive Chemiluminescent Determination of a Wide Variety of Nucleosides and Their Derivatives by Flow Injection Method

   • Mikita Ishii
   • Yoichi Ohno
   • Toshiyuki Hobo

   Original Papers 11 December 1991 Pages: 873 - 877

8. Determination of Cadmium by Inductively Coupled Plasma Atomic Emission Spectrometry after Suction-Flow On-Line Preconcentration on 8-Quinolinol-Loaded Active Carbon

   • Yasuaki Okamoto
   • Atsunori Murata
   • Takahiro Kumamaru

   Original Papers 11 December 1991 Pages: 879 - 882

9. Beginning of Atomization in Presence of Matrix Modifier in Graphite Furnace Atomic Absorption Spectrometry

   • Kounosuke Oishi
   • Kazuo Yasuda
   • Kichinosuke Hirokawa

   Original Papers 11 December 1991 Pages: 883 - 887

10. Determination of Ytterbium in Seawater by Graphite Furnace Atomic Absorption Spectrometry after Coprecipitation and Solvent Extraction

    • Osamu Fujino
    • Sino Nishida
    • Keizo Hiraki

    Original Papers 11 December 1991 Pages: 889 - 892

11. Chemical Reactions in an Electrothermal Graphite Furnace in the Presence of Lead, Magnesium Chloride and Chromium Nitrate

    • Shoji Imai
    • Kengo Saito
    • Yasuhisa Hayashi

    Original Papers 11 December 1991 Pages: 893 - 896

12. Gas Chromatographic-Mass Spectrometric Determination of Anthraquinonesulfonates in Environmental Samples

    • Tadashi Tsukioka
    • Hideaki Ozawa
    • Tetsuro Murakami

    Original Papers 11 December 1991 Pages: 897 - 900

13. Monitoring of the Asbestos Concentration in Piled Particulate Matter on Roads due to Traffic as the Source

    • Takashi Saito

    Original Papers 11 December 1991 Pages: 901 - 905

14. Solvent Extraction of Copper Ion with Chelate Extractants Having Two Hydroxyoxime Moieties

    • Naoyoshi Egashiha
    • Makoto Takagi
    • Mizuo Maeda

    Original Papers 11 December 1991 Pages: 907 - 911

15. Spectrophotometric Determination of Copper(II) Following Collection on an Organic Solvent-Soluble Membrane Filter as the N,N-Diethyldithiocarbamate Complex

    • Masahiko Kan
    • Honami Sakamoto
    • Mitsuhiko Taga

    Original Papers 11 December 1991 Pages: 913 - 917

16. Solvent Extraction and Indirect Spectrophotometric Determination of Cyanate, Thiocyanate and Selenocyanate Anions with the Copper(II) Complex of Di-2-pyridylmethanone 2-Quinolylhydrazone

    • Hiroyuki Asai
    • Toshiki Taya
    • Makoto Otomo

    Original Papers 11 December 1991 Pages: 919 - 924

17. Micellar-Enhanced Highly Sensitive Reaction of Rare Earths with Xylenol Orange and Surfactants. Study of Reaction Conditions and Optimization of Spectrophotometric Method

    • Aleš Hrdličkai
    • Josef Havel
    • Manuel Valiente

    Original Papers 11 December 1991 Pages: 925 - 929

18. Extraction Spectrophotometric Method for the Determination of Uranium in Geological Samples Using a Ternary Complex of 2-(p-Methylphenylazo)pyridine and Thiocyanate

    • Partha Chattopadhyay
    • Tapan Kumar Sinha
    • T. S. Basu Baul

    Original Papers 11 December 1991 Pages: 931 - 933

19. Acid-Base Equilibria and Metal Extraction Properties of 1-Phenyl-1,3-decanedione

    • María Jesús Zapatero
    • María Puy Elizalde
    • José Maria Castresana

    Original Papers 11 December 1991 Pages: 935 - 940

20. Determination of the Blend Composition Ratio of Cocaine to Sodium Hydrogencarbonate by X-Ray Diffraction Using Multivariate Analysis

    • Toshiyuki Mitsui
    • Syuji Okuyama
    • Yoshikazu Fujimura

    Original Papers 11 December 1991 Pages: 941 - 945

21. Synergist Induced Potentiometric Response of Liquid Membranes Containing Chelating Agents

    • Yasoo Itoh
    • Hideo Akaiwa
    • Yoshio Umezawa

    Letters to the Editor 11 December 1991 Pages: 947 - 949

22. Sorption on Diethylaminoethyl-Sephadex A-25 for the Measurement of Electrochemical Lability of Metal-Humic Complexes in Water

    • Masataka Hiraide
    • Tomoo Miwa
    • Hiroshi Kawaguchi

    Notes 11 December 1991 Pages: 951 - 953

23. Nuclear Magnetic Resonance Chemical Shifts of Pure Organic Solvents Determined by Magic Angle Spinning

    • Shigenobu Havashi
    • Masaru Yanagisawa
    • Kikuko Hayamizu

    Notes 11 December 1991 Pages: 955 - 957

24. Enantioseparation of N-Dansyl-dl-amino Acids by Polyacrylamide Gel Zone Electrophoresis

    • Hideyuki Nishizawa
    • Keiko Nakajima
    • Yoshihiro Abe

    Notes 11 December 1991 Pages: 959 - 961

25. High-Performance Liquid Chromatographic Determination of Urinary Malondialdehyde as p-Nitrophenylhydrazine Derivative

    • Bunji Uno
    • Kazutaka Kawai
    • Masafumi Tomita

    Notes 11 December 1991 Pages: 963 - 965

26. On-Line Removal of Interfering Alkaline Earth Metals for Simultaneous Determination of Hydrogen Carbonate, Chloride, Nitrate and Sulfate by Indirect Photometric Detection Ion Chromatography

    • Kazuichi Hayakawa
    • Kyoko Nomura
    • Motoichi Miyazaki

    Notes 11 December 1991 Pages: 967 - 969

27. Electrochemiluminescence Determination of d-, l-Tryptophan Using Ligand-Exchange High-Performance Liquid Chromatography

    • Kazuo Uchikura
    • Makoto Kirisawa

    Notes 11 December 1991 Pages: 971 - 973

28. Spectrophotometric Determination of Beryllium with Chromazurol S and Zephiramine

    • Hiroshi Nishida

    Notes 11 December 1991 Pages: 975 - 977

29. Rapid Analysis of Light Hydrocarbons and Carbon Dioxide in Air with Micro Thermal Conductivity Detector

    • Akira Machino
    • Hideo Sugimoto
    • Daijiro Terasaki

    Instrumental Achievements 11 December 1991 Pages: 979 - 981

30. Crystal and Molecular Structures of 44-Homooligomycin B

    • Yoichi Iitaka
    • Masanori Yamazaki
    • Tomohisa Takita

    Instrumental Achievements 11 December 1991 Pages: 983 - 985

31. Crystal and Molecular Structures of 2′-Deoxy-2′-(S)-phenylsulfinyluridine Hemihydrate

    • Tadashi Hata
    • Akira Matsuda
    • Tadashi Miyasaka

    Instrumental Achievements 11 December 1991 Pages: 989 - 990