G. Nakagawa

发表

Open-tubular microcapillary liquid chromatography with electro-osmosis flow using a UV detector

T. Tsuda, Kazuhiro Nomura, G. Nakagawa, 1982 .

Sulfonated 1-(2-pyridylazo)-2-naphthols and 2-(2-pyridylazo)-1-naphthols as spectrophotometric reagents

H. Wada, G. Nakagawa, K. Ohshita, 1982 .

Effects of manifold components on peak profiles in flow-injection analysis

H. Wada, G. Nakagawa, Y. Sawa, 1989 .

Separation of organic and metal ions by high-voltage capillary electrophoresis

T. Tsuda, Kazuhiro Nomura, G. Nakagawa, 1983 .

Masking of zirconium(IV) in the determination of fluoride with an ion-selective electrode: application to zirconium(IV) fluoride-based glasses

A. Yuchi, H. Wada, G. Nakagawa, 1991 .

A Novel Stability Sequence of Lanthanoid Complexes with 1,2-Bis(o-aminophenoxy)ethane-N,N,N,N-tetraacetic Acid

A. Yuchi, H. Wada, M. Hirai, 1990 .

Complexation equilibria and fluorescent properties of chelating reagents derived from ethylene glycol bis(β-aminoethylether)-N,N,N',N'-tetraacetic acid

T. Yasui, A. Yuchi, H. Wada, 1993 .

Equilibrium and X-Ray Structural Studies on Dimeric and Trimeric Species Formed in the Extraction of Nickel(II) with 2-Methyl-8-quinolinol

H. Murakami, A. Yuchi, H. Wada, 1992 .

X-Ray Crystal Structures of Nickel Complexes with 2-Methyl-8-quinolinol, Ni(mq)2(H2O)2 and Na3Ni3H6(mq)15·H2O

H. Murakami, A. Yuchi, H. Wada, 1990 .

Use of the Copper(II)-Selective Electrode for the Determination of the Stability Constants of Copper(II) Complexes

H. Wada, G. Nakagawa, Tomohiko Hayakawa, 1975 .

X-Ray Crystal Structure of Silver(I) Complex with 1,3-Bis(8-quinolylthio)propane

A. Yuchi, H. Wada, M. Shiro, 1992 .

X-Ray Crystal Structures of Ti(IV)-4,4′-Methylenebis(antipyrine) Complexes, [Ti(dam)3](ClO4)4. Formation of Eight-Membered Chelate Rings and Aromatic Ring Stacking Responsible for Characteristic Coloration

A. Yuchi, H. Wada, M. Shiro, 1991 .

Equilibrium studies on the species formed in the extraction of divalent transition metal ions with 8-quinolinethiol and its 2-methyl derivative

A. Yuchi, H. Wada, G. Nakagawa, 1987 .

Equilibrium and Structural Studies on the Species Formed in the Extraction of Divalent Transition Metal Ions with 8-Quinolinol

A. Yuchi, H. Wada, M. Shiro, 1986 .

Synthesis of 2-[2-(4-methylquinolyl)azo]-5-diethylaminophenol and its use for the spectrophotometric determination of nickel

A. Yuchi, H. Wada, G. Nakagawa, 1993 .

Retention behaviour of metal chelates in ion-pair reversed-phase liquid chromatography as a function of mobile phase composition with methanol-water and acetonitrile-water mobile phases

H. Wada, G. Nakagawa, Chizuko Ohtsuka, 1994 .

Characterization of 2-(2-pyridylazo)-5-[N-(sulphoalkyl)amino]phenol derivatives as the precolumn chelating agent for trace metal determination by ion-pair reversed-phase liquid chromatography with spectrophotometric detection

H. Wada, G. Nakagawa, Chizuko Ohtsuka, 1992 .

Chromatographic behaviour of 2-(2-pyridylazo)-5-[N-(sulphoalkyl)amino]phenol chelates on hydrophobic stationary phases

H. Wada, G. Nakagawa, Chizuko Ohtsuka, 1991 .

Peak Splitting for Co(III) and Al(III) Complexes in High Performance Liquid Chromatography by Linkage Isomerism of Unsymmetric o,o'-Dihydroxyazobenzene Derivatives.

A. Yuchi, H. Wada, G. Nakagawa, 1991 .

2-(2-thiazolylazo)-4-methyl-5-(sulfomethylamino)benzoic acid as a reagent for the spectrophotometric determination of cobalt

H. Wada, G. Nakagawa, T. Ishizuki, 1982 .

Use of a Silver Ion Selective Electrode for the Determination of Stability Constants of Metal Complexes

A. Yuchi, H. Wada, G. Nakagawa, 1985 .

Determination of iodide ion using alkali-free lead phosphate glasses as potentiometric detector sensors in nonsuppressed ion chromatography.

Y. Hikichi, G. Nakagawa, T. Nomura, 1988 .

Some o-(2-Thiazolylazo)--phenol Derivatives as Metal Indicator for Nickel

H. Wada, G. Nakagawa, 1964 .

Synthesis of N-sulfoalkyl derivatives of 2-(2-pyridylazo)-5-aminophenol and the spectrophotometric determination of uranium(IV)

H. Wada, G. Nakagawa, K. Ohshita, 1983 .

The Selective Chelatometry of Calcium in the Presence of Magnesium with Ethylene Glycol-bis(β-aminoethyl ether)-N,N,N′,N′-tetraacetic Acid

H. Wada, Motoharu Tanaka, G. Nakagawa, 1963 .

Spectrophotometric determination of traces of iron with 2-(3,5-dibromo-2-pyridylazo)-5-[N-ethyl-N-(3-sulfopropyl)amino]phenol and its application in flow injection analysis

H. Wada, G. Nakagawa, K. Ohshita, 1983 .

General considerations in compleximetric titrations

Motoharu Tanaka, G. Nakagawa, 1965 .

Mixed ligand complexes of trivalent metal ions with an amine-N-polycarboxylate and fluoride

A. Yuchi, H. Wada, H. Hotta, 1987 .

Separation and determination of trace of nickel in cobalt:Application of the solvent extraction with high molecular weight amines

H. Wada, G. Nakagawa, T. Dono, 1962 .

Quantitative treatment of exchange equilibria involving complexans—III: chelatometric determination of calcium in presence of magnesium with EGTA

H. Wada, Motoharu Tanaka, G. Nakagawa, 1963 .

Quantitative treatment of exchange equilibria involving complexans—I: Polarographic determination of calcium in the presence of magnesium

G. Nakagawa, 1962 .

Packed microcapillary columns with 10-.mu.m silica gel for liquid chromatography

T. Tsuda, I. Tanaka, G. Nakagawa, 1984 .

Open-tubular liquid chromatography with 5–10-μm I.D. Columns☆

T. Tsuda, G. Nakagawa, 1983 .

Small spray chamber with a concentric nebuliser for inductively coupled plasma atomic emission spectrometry

G. Nakagawa, T. Uchida, Hirofumi Isoyama, 1990 .

Sample dispersion with chemical reaction in a flow-injection system

A. Yuchi, H. Wada, G. Nakagawa, 1986 .

Polarographic determination of phosphate

G. Nakagawa, T. Nomura, M. Aoki, 1960 .

Tensammetric determination of microgram amounts of EDTA using a catalytic oxidation of 2-amino-4-methylphenol with vanadium

G. Nakagawa, T. Nomura, 1980 .

Spectrophotometric determination of fluoride with lanthanum/alizarin complexone by flow injection analysis

H. Wada, H. Mori, G. Nakagawa, 1985 .

Adaptation of moving‐wire flame ionization detector to accept total effluent in micro‐liquid chromatography

T. Tsuda, G. Nakagawa, M. Maseki, 1983 .

Mixed Ligand Complexes of Copper(II)-1-(2-Pyridylazo)-2-naphthol with Bidentate Ligands

K. Ikuta, H. Wada, G. Nakagawa, 1978 .

The Theory of the Indicator Transition in Chelatometry

Motoharu Tanaka, G. Nakagawa, 1964 .

Quantitative treatment of exchange equilibria involving complexans—I: General consideration and scope of applications in analytical chemistry

Motoharu Tanaka, G. Nakagawa, 1962 .

Semi-Xylenol Orange complex of zirconium(IV) as a photometric reagent system for fluoride based on mixed ligand complex formation

A. Yuchi, H. Wada, G. Nakagawa, 1993 .

Equilibrium study on the characteristic color-changing reaction of lanthanum complex of 3-[[bis(carboxymethyl)amino]-methyl]-1,2-dihydroxyanthraquinone (alizarin complexon) with fluoride ion.

A. Yuchi, H. Wada, H. Mori, 1988 .

Tiron as a masking reagent for aluminium in the determination of fluoride with an ion-selective electrode: equilibrium studies and application

A. Yuchi, H. Wada, G. Nakagawa, 1988 .

Complexation Equilibria of Cadmium Ions with Xylenol Orange as Studied by Cadmium Ion Selective Electrode

A. Yuchi, H. Wada, G. Nakagawa, 1987 .

Equilibrium study on the masking of aluminium ion in the determination of fluoride with ion-selective electrodes

A. Yuchi, H. Wada, G. Nakagawa, 1986 .

Determination of twelve elements in botanical samples with inductively coupled plasma atomic emission spectrometry after leaching with tetramethylammonium hydroxide and ethylenediaminetetraacetic acid

G. Nakagawa, T. Uchida, Kyoko Yamada, 1992 .

Determination of fluoride ion by the use of a fluoride ion-selective electrode

G. Nakagawa, K. Kodama, N. Shiraishi, 1974 .

Packed microcapillary liquid chromatography with reduced I.D. columns

T. Tsuda, G. Nakagawa, T. Isao, 1982 .

Potentiometric determination of calcuimn with EGTA using silver as an indicator electrode

G. Nakagawa, T. Nomura, 1967 .

Potentiometric investigation of complex formation of lead(II) with glycine and dl-alanine

G. Nakagawa, Yoshihiro Tanaka, M. Maeda, 1979 .

Formation constants for Pb(II)-iminodiacetic acid complexes as determined by potentiometry with glass, Pb-Amalgam and lead ion-selective electrodes

G. Nakagawa, M. Maeda, Masaaki Ohnishi, 1981 .

Potentiometric investigation of complex formation of Pb(II) with 2-amino-2-methylpropanoic acid and dl-2-aminobutanoic acid

G. Nakagawa, Yoshihiro Tanaka, M. Maeda, 1981 .

Determination of trace metals in biological samples by inductively coupled plasma atomic emission spectrometry with discrete nebulization after microwave decomposition.

G. Nakagawa, T. Uchida, C. Iida, 1990 .

Reversed-phase ion-pair partition chromatography of iron, cobalt and nickel chelates with 4-hydroxy-3-(2-pyridylazo)naphthalene-1-sulphonic acid

H. Wada, G. Nakagawa, S. Nezu, 1984 .

Studies on solid-state mixed sulfide active materials for ion-selective electrodes

Kaname Ito, S. Ikeda, G. Nakagawa, 1981 .

Occurrence of Silver Copper Sulfide, Ag 1.55 Cu 0.45 S, in Mixed Sulfide Active Materials for Copper (II) Ion-Selective Electrodes

Kaname Ito, S. Ikeda, G. Nakagawa, 1980 .

Preparation and examination of calcium ion-selective electrodes for flow analysis

H. Wada, S. Ito, Y. Asano, 1988 .

Performances of Lead and Copper(II) Ion-selective Electrodes in Metal Buffer Solutions and the Determination of the Stability Constants of Lead and Copper(II) Complexes

T. Sako, H. Wada, G. Nakagawa, 1980 .

Preparation of cuprous iodide membrane electrode and its application

G. Nakagawa, T. Nomura, 1971 .

The performance of a cadmium ion-selective electrode in metal buffer solutions and the determination of the stability constants of cadmium complexes

A. Yuchi, H. Wada, G. Nakagawa, 1983 .

2-(2-THIAZOLYLAZO)-4-METHYL-5-(SULFOMETHYLAMINO)BENZOIC ACID AS METALLOCHROMIC INDICATOR FOR NICKEL

H. Wada, G. Nakagawa, T. Ishizuki, 1983 .

Silver Diethyldithiocarbamate Membrane as a Nitrate Ion Selective Electrode

G. Nakagawa, T. Nomura, 1975 .

Spectrophotometric determination of magnesium by flow injection analysis with a ligand buffer for masking calcium

A. Yuchi, H. Wada, G. Nakagawa, 1983 .

Synthesis of o,o′-dihydroxyazo compounds and their application to the determination of magnesium and calcium by flow injection analysis

H. Wada, G. Nakagawa, K. Ohshita, 1984 .

Spectrophotometric determination of calcium with a flow injection system

H. Wada, G. Nakagawa, C. Wei, 1983 .

Masking Ability of Various Complexing Agents for Aluminum in the Fluorine Determination with a Fluoride Ion-Selective Electrode

G. Nakagawa, K. Kodama, N. Shiraishi, 1975 .

Enhancement of Demasking of Fluoride Ion From its Aluminum Complexes by Dilution in the Determination With a Fluoride Ion-Selective Electrode

G. Nakagawa, K. Kodama, N. Shiraishi, 1973 .

Anion-selective properties of alkali metal-free lead phosphate glasses containing silver chloride and their application in an ion-selective electrode

G. Nakagawa, T. Nomura, Kanji Masui, 1990 .

Alkali-free magnesium phosphate glasses as nitrate-ion-selective materials for solid-state electrochemical sensors

G. Nakagawa, T. Nomura, 1984 .

Development of Hydrogen Ion Selective Electrode with Lithium Phosphate Glasses for the Use in Solutions Containing Hydrofluoric Acid

G. Nakagawa, T. Nomura, 1983 .

Properties of alkali-free magnesium phosphate glass membranes containing silver oxide and their application to the ammonia selective electrode.

G. Nakagawa, T. Nomura, 1983 .

New metallochromic indicators for compleximetric titration of calcium

H. Wada, G. Nakagawa, 1980 .

Preconcentration and determination of calcium and magnesium in brine with flow-injection systems

H. Wada, G. Nakagawa, Heisuke Askura, 1988 .

Synthesis of 2-[2-(8-hydroxyquinolyl)azo]-1-naphthol and its use in the spectrophotometric determination of calcium in potable water

H. Wada, G. Nakagawa, T. Ishizuki, 1985 .

Reversed-phase ion-pair partition liquid chromatography of chelates with 2-(3,5-dibromo-2-pyridylazo)-5-[N-ethyl-N-(3-sulphopropyl) amino] phenol and analogues

H. Wada, G. Nakagawa, T. Ishizuki, 1989 .

Calmagite: The Formation Constants of Zinc(II) Chelates and Its Use as a Metal Indicator

H. Wada, G. Nakagawa, Y. Fujita, 1973 .

Open-tubular microcapillary liquid chromatography with 30–40 μm I.D. columns

T. Tsuda, G. Nakagawa, 1980 .

General considerations in the acid-base titrations in glacial acetic acid

Motoharu Tanaka, G. Nakagawa, 1965 .

Small spray chamber for inductively coupled plasma atomic emission spectrometry and its evaluation by a digital signal sampling technique

G. Nakagawa, T. Uchida, C. Iida, 1989 .

Ion chromatography of alkaline earth and heavy metal ions by on-column derivatization with bisazochromotropic acid

T. Yasui, A. Yuchi, H. Wada, 1993 .

Separation of nucleotides by high-voltage capillary electrophoresis.

T. Tsuda, K. Yagi, M. Sato, 1983, Journal of applied biochemistry.

Flow-injection fluorimetric determination of traces of calcium in brine

H. Wada, G. Nakagawa, Hiromichi Atsumi, 1992 .

Properties of alkali-free lead phosphate glasses as an ion-selective electrode and their application to a potentiometric detector for ion chromatography.

G. Nakagawa, T. Nomura, 1987 .