On-line preconcentration and sample clean-up system for the determination of vanadium as a 4-(2-pyridylazo) resorcinol–hydrogen peroxide ternary complex in plant tissues by ion-interaction high performance liquid chromatography

Vachirapatama, Narumol; Jirakiattikul, Yaowapha; Dicinoski, Greg W.; Townsend, Ashley T.; Haddad, Paul R.

doi:10.1016/j.aca.2005.04.021

Cited by 11 publications

(8 citation statements)

References 12 publications

(19 reference statements)

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“…The formation of an uncharged chemical species in an aqueous [39] phase by either chelation or ion-association is essential for extraction into a suitable organic solvent. The distribution ratio of a particular analyte is usually defined as the ratio of the analyte's total concentration in an organic phase to that in the aqueous phase at equilibrium.…”

Section: Liquid-liquid Extractionmentioning

confidence: 99%

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Trends in speciation analysis of vanadium in environmental samples and biological fluids—A review

Chen

Owens

2008

Analytica Chimica Acta

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Section: Liquid-liquid Extractionmentioning

confidence: 99%

“…The vanadium complex was flushed onto the analytical column using a mobile phase comprising 32% (v/v) methanol, 5 mM acetic acid, 5 mM citric acid and 5 mM tetrabutylammonium bromide (TBABr) at pH 7. The developed method was used for the determination of vanadium in plant tissue [39].…”

Section: Off-line and On-line Spe Extractionmentioning

confidence: 99%

Trends in speciation analysis of vanadium in environmental samples and biological fluids—A review

Chen

Owens

2008

Analytica Chimica Acta

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“…Some of the ionpairing reagents used in IP-RPLC are aminopolycarboxylic acids; e.g. EDTA) [1,2,4,12,14], 1,2-cyclohexanediaminotetraacetic acid (CDTA) [3], N-2-hydroxyethylethylenediaminetetraaceatic acid (HEDTA) [23] and 4-(2-pyridylazo) resorcinol (PAR) [15,24].…”

Section: Introductionmentioning

confidence: 99%

“…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%

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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“…[1][2][3][4][5] Many azo dyes, such as reagents of pyridylazo, 6,7 thiazolylazo, 8 benzothiazolylazo, 9 phenanthroline, 10 and azobenzene 11 have been used as the precolumn derivatizing reagents for the simultaneous determination of metal ions by HPLC. The suitable precolumn derivatizing reagents containing aroylhydrazones were systematically studied by Yotsuyanagi and his coworkers.…”

mentioning

confidence: 99%

The Use of 3-(2-Pyridyl)-5,6-diphenyl-1,2,4-triazine as a Precolumn Derivatizing Reagent in HPLC Determination for Fe(II) in Natural Samples

Zhu

Zheng³

et al. 2007

ANAL. SCI.

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The determination of Fe(II) is of considerable interest for environmental studies. Since different metal speciation has different physical and chemical behavior, in order to get full and precise information of the environmental behaviors of the iron, the iron speciation analysis including Fe(II) determination is inevitable. The concentration of Fe(II) in the environment is usually too low to be determined by common spectrophotometric method, so it is necessary to develop a more sensitive and selective method.The high-performance liquid chromatography (HPLC) of metal chelate compounds has been one of the most powerful methodologies for trace metal analysis and thus has received increasing attention. [1][2][3][4][5] Many azo dyes, such as reagents of pyridylazo, 6,7 thiazolylazo, 8 benzothiazolylazo, 9 phenanthroline, 10 and azobenzene 11 have been used as the precolumn derivatizing reagents for the simultaneous determination of metal ions by HPLC. The suitable precolumn derivatizing reagents containing aroylhydrazones were systematically studied by Yotsuyanagi and his coworkers. They successfully applied the developed HPLC methods to the determination of Ni(II) and V(V) in fly ash and airborne particulate samples. 12,13 Ferroin-type chromogen is distinguished structurally by the bidentate chelate functional group =N-C=C-N=, such as 3-(2-pyridyl)-5,6-diphenyl-1,2,4-triazine (PDT), which has the same chelating system as 1,10-phenanthroline, but is more sensitive for the determination of Fe(II).Schilt and coworkers investigated the colorimetric properties of the Fe(II) chelate of this chromogens by spectrophotometric methods. [14][15][16] Since this initial investigation, many studies have utilized PDT chelation of Fe(II) with subsequent spectrophotometric analyses. [17][18][19] PDT has been extensively used for the spectrophotometric determination of Fe(II), and some HPLC methods to determine metals including Fe(II) have been reported elsewhere. [20][21][22][23] For example, Brown and his coworkers applied ferrozine, the disulfonated PDT, to the HPLC method for the determination of ultratrace amounts of Fe(II) in environmental samples. 20 To our knowledge, the application of PDT in the HPLC method as the precolumn derivatizing reagent to the determination of Fe(II) has not been reported yet.In previous spectrophotometric methods [14][15][16][17][18][19] in which PDT was used as a derivatizing reagent, the use of excess PDT is often needed to ensure that the Fe(II) is chelated completely. However, one is unlikely to accomplish the separation and determination of PDT that is not chelated in the unknown real sample matrix, in that the excess PDT can cause considerable error in a sample at very low Fe(II) concentrations, especially when the sample (e.g., pore water in sediments) contains high concentrations of organic matter, 24,25 because the colored organic matter and the excess PDT in the sample also have 3-(2-Pyridyl)-5,6-diphenyl-1,2,4-triazine (PDT) was used for the first time as a precolumn derivatizing reagent ...

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On-line preconcentration and sample clean-up system for the determination of vanadium as a 4-(2-pyridylazo) resorcinol–hydrogen peroxide ternary complex in plant tissues by ion-interaction high performance liquid chromatography

Cited by 11 publications

References 12 publications

Trends in speciation analysis of vanadium in environmental samples and biological fluids—A review

Trends in speciation analysis of vanadium in environmental samples and biological fluids—A review

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~!

The Use of 3-(2-Pyridyl)-5,6-diphenyl-1,2,4-triazine as a Precolumn Derivatizing Reagent in HPLC Determination for Fe(II) in Natural Samples

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