Determination of Cobalt in Natural Water as a 2-(5-Bromo-2-pyridylazo)-5-N-propyl-N-(3-sulfopropyl)aminophenol Chelate by On-Line Preconcentration HPLC with Column-Switching Technique

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Department of Applied Chemistry, Faculty of Engineering, Utsunomiya University, Ishii-cho, Utsunomiya 321-8585, Japan ^{[1
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Anal. Sci. | / 2卷 / 343-347期

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[21] WATER-SOLUBLE PYRIDYLAZOANILINE REAGENTS FOR THE SPECTROPHOTOMETRIC DETERMINATION OF METALS - DETERMINATION OF IRON(II) WITH 2-(5-BROMO-2-PYRIDYLAZO)-5-(N-PROPYL-N-SULFOPROPYLAMINO)ANILINE
HORIGUCHI, D
SAITO, M
IMAMURA, T
KINA, K
ANALYTICA CHIMICA ACTA, 1983, 151 (02) : 457 - 463
[22] Separation and determination of niobium(V) and tantalum(V) as 2-(5-bromo-2-pyridylazo)-5-[N-propyl-N-(3-sulfopropyl)amino] phenol citrate ternary complexes in geological samples using ion interaction high-performance liquid chromatography
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[23] KINETIC SPECTROPHOTOMETRIC DETERMINATION OF CARBONATE ION IN WATER BY THE COMPLEX-FORMATION OF URANIUM(VI) WITH 2-(5-BROMO-2-PYRIDYLAZO)-5-(N-PROPYL-N-SULFOPROPYLAMINO)PHENOL
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[24] Spectrophotometric determination of tin in steels with 2-(5-nitro-2-pyridylazo)-5-[N-n-propyl-N-(3sulfopropyl)amino]phenol
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Uto, M
Inoue, S
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[25] SPECTROPHOTOMETRIC DETERMINATION OF HYDROGEN-PEROXIDE WITH 2(5-BROMO-2-PYRIDYLAZO)-5-(N-PROPYL-N-SULFOPROPYLAMINO)PHENOLMOLYBDENUM(VI), OR 2-(5-NITRO-2-PYRIDYLAZO)-5-(N-PROPYL-N-SULFOPROPYLAMINO)PHENOLVANADIUM(V) IN THE PRESENCE OR ABSENCE OF SURFACTANT
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[26] SEPARATION AND SENSITIVE DETERMINATION OF METAL-IONS BY CAPILLARY ZONE ELECTROPHORESIS WITH 2-(5-BROMO-2-PYRIDYLAZO)-5-(N-PROPYL-N-SULFOPROPYLAMINO)PHENOL
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[27] SPECTROPHOTOMETRIC AND 2ND-ORDER DERIVATIVE SPECTROPHOTOMETRIC DETERMINATION OF RUTHENIUM(III) WITH 2-(5-BROMO-2-PYRIDYLAZO)-5-(N-PROPYL-3-SULFOPROPYLAMINO)PHENOL
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[28] SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION OF IRON AND COPPER IN SERUM WITH 2-(5-BROMO-2-PYRIDYLAZO)-5-(N-PROPYL-N-SULPHOPROPYLAMINO) ANILINE BY FLOW-INJECTION ANALYSIS
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[29] SPECTROPHOTOMETRIC STUDY OF COMPLEXATION EQUILIBRIA BETWEEN LANTHANOIDS(III) AND 2-(5-BROMO-2-PYRIDYLAZO)-5-(N-PROPYL-3-SULFOPROPYLAMINO)PHENOL
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[30] Column preconcentration and FAAS determination of copper, iron, nickel and zinc using 2-(5-bromo-2-pyridylazo)-5-diethylaminophenol-tetraphenylborate-naphthalene adsorbent
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ANALYTICAL AND BIOANALYTICAL CHEMISTRY, 2002, 374 (7-8) : 1306 - 1311

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