Simultaneous electrophoretic determination of vanadium(V) and vanadium(IV) based on the complex formation with a Mo(VI)–P(V) reagent

Kitazumi, Iwao; Nakashima, Yusuke; Himeno, Sadayuki

doi:10.1016/s0021-9673(01)01354-1

Cited by 27 publications

(29 citation statements)

References 15 publications

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“…Furthermore, it may be observed from this table that the separation and resolution factors decreased by increasing pH. The effect of pH on the peak areas of vanadium metal ion species was studied by Kitazumi et al [32]. The results are presented in Fig.…”

Section: Independent Variablesmentioning

confidence: 87%

“…The LODs by the direct and indirect UV detectors (at ppb levels) are also reviewed by Timerbaev [41]. The LOD of some metal ions, such as chromium (30.0-8.0 mg/L) [42], vanadium (10 27 M) [32], platinum and selenium (1-20 mg/L) [43], arsenic and selenium (pg level) [30] etc., have been reported. Olesik et al [12] reported a detection limit of the magnitude of 0.06 ppb when using a CE-ICP-MS setup.…”

Section: Independent Variablesmentioning

confidence: 99%

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Metal ion speciation and capillary electrophoresis: Application in the new millennium

2005

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Metal ions are essential for human beings at low concentrations but they are toxic or even carcinogenic at high concentrations. Many metallic ions are found in the environment in different species which are differentiated not only by their physicochemical forms but also by their diverse toxicities with respect to living organisms (speciation). CE has been used for metal ion speciation. The present review article describes the recent trends in metal ion speciation by CE. This article deals with the speciation of metal ions, optimization of the speciation (by independent and dependent variables), hyphenation of CE, validation of the methods, mechanisms of speciation, CE versus chromatography and conclusions.

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Section: Independent Variablesmentioning

confidence: 87%

Section: Independent Variablesmentioning

confidence: 99%

Metal ion speciation and capillary electrophoresis: Application in the new millennium

2005

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“…Many techniques have been used to separate the redox species of vanadium in natural waters, including capillary electrophoresis (CE) [14][15][16][17][18], reversed-phase liquid chromatography (RPLC) [19][20][21][22] (including ion-pairing (IP) RPLC), and, various forms of ion chromatography [1,3,4,14,15,[23][24][25][26]. After the species have been separated by any of these techniques, they are quantified by UV [14,17], chemiluminescence [27], ICP [28], or ICPMS [14].…”

Section: Introductionmentioning

confidence: 99%

“…After the species have been separated by any of these techniques, they are quantified by UV [14,17], chemiluminescence [27], ICP [28], or ICPMS [14].…”

Section: Introductionmentioning

confidence: 99%

“…In CE, the vanadium species are separated after complexation with various reagents such as ethylenediaminetetraacetic acid (EDTA) [14,18], diethylenetriaminepentaacetic acid (DTPA) [14,18], and a Mo(VI)-P(V) reagent [17]. In reversed-phase liquid chromatography [2,[19][20][21][22], the chelating reagents include 4-(2-pyridylazo) resorcinol (PAR) [19][20][21][22]29], 2-(5-bromo-2-pyridylazo)-5-(N-propyl-N-sulfopropylamino)-phenol (5-Br-PAPS) [2], hydrogen peroxide-2-(5-bromo-2-pyridylazo)-5-diethylaminophenol (5-Br-PADAP) [21] and 2-(5-nitro-2-pyridylazo)-5-[N-n-propyl-N-(3-sulfopropyl)-amino]phenol (nitro-PAPS) [30].…”

Section: Introductionmentioning

confidence: 99%

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Determination of Vanadium (IV) and (V) in Southern Nevada Groundwater by Ion Chromatography-Inductively Coupled Plasma Mass Spectrometry~!2009-12-24~!2010-02-10~!2010-05-11~!

Gamage¹,

Hodge²,

Cizdziel³

et al. 2010

TOCBMJ

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A rapid method is presented for measuring V(IV) and V(V) in groundwater, without preconcentration or complexing agents, using direct injection of the water samples (which were collected under an argon atmosphere) into an ion chromatograph-inductively coupled plasma mass spectrometer (ICPMS). The mobile phase is 1.5% v/v nitric acid, which minimizes the buildup of solids in the ultrasonic nebulizer, the torch, and on the entrance cones of the ICPMS -a problem with methods using organic complexing agents and inorganic salts. The result is much less instrument downtime for cleaning the affected parts. Limits of detection are 0.02 g L -1 for V(IV) and 0.06 g L -1 for V(V). The pentavalent form of vanadium represents 98% to 99% of the vanadium in these Southern Nevada groundwater samples and ranges from 3.7±0.1 g L -1 to 82.1±0.5 g L -1 . The remaining few percent is V(IV). Total vanadium was determined by ICPMS for a mass-balance comparison.

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Recent advances and trends in capillary electrophoresis of inorganic ions

Timerbaev

2002

Electrophoresis

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Capillary electrophoresis (CE) continues its invasion into the domain of inorganic analysis. This review summarizes the progress and significant developments of CE of inorganic ions over the first two years of the new century. As manifested by the substantial number of published articles, this field is still witnessing a growing activity of many separation scientists. To provide an in-depth treatment of fundamental and methodological aspects of inorganic ion analysis by CE, an extensive fraction of the relevant literature is covered whereas only most innovative application reports are briefly considered. Most of the recent advancements have focused on CE system modernization designed to improve a limited detection sensitivity, which still remains a major obstacle to overcome in order to ensure the method's wider practical acceptance. Attention is also given to how and in which directions the future research could be performed to implement CE in routine inorganic analysis.

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Simultaneous electrophoretic determination of vanadium(V) and vanadium(IV) based on the complex formation with a Mo(VI)–P(V) reagent

Cited by 27 publications

References 15 publications

Metal ion speciation and capillary electrophoresis: Application in the new millennium

Metal ion speciation and capillary electrophoresis: Application in the new millennium

Determination of Vanadium (IV) and (V) in Southern Nevada Groundwater by Ion Chromatography-Inductively Coupled Plasma Mass Spectrometry~!2009-12-24~!2010-02-10~!2010-05-11~!

Recent advances and trends in capillary electrophoresis of inorganic ions

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